diff --git a/.jscsrc b/.jscsrc
new file mode 100644
index 0000000..423b011
--- /dev/null
+++ b/.jscsrc
@@ -0,0 +1,14 @@
+{
+	"preset": "google",
+	"validateIndentation": "\t",
+	"maximumLineLength": 120,
+	"jsDoc": {
+		"checkAnnotations": {
+			"preset": "jsdoc3",
+			"extra": {
+				"preserve": true
+			}
+		}
+	},
+	"requireCamelCaseOrUpperCaseIdentifiers": true
+}
diff --git a/README.md b/README.md
index 4bdc993..d76fd7d 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ Join gridstack.js on Slack: https://gridstackjs.troolee.com
   - [Requirements](#requirements)
   - [Install](#install)
   - [Basic usage](#basic-usage)
+  - [Migrating to v0.2.5](#migrating-to-v025)
   - [Options](#options)
   - [Grid attributes](#grid-attributes)
   - [Item attributes](#item-attributes)
@@ -31,30 +32,32 @@ Join gridstack.js on Slack: https://gridstackjs.troolee.com
     - [disable(event)](#disableevent)
     - [enable(event)](#enableevent)
   - [API](#api)
-    - [add_widget(el, x, y, width, height, auto_position)](#add_widgetel-x-y-width-height-auto_position)
-    - [make_widget(el)](#make_widgetel)
-    - [batch_update()](#batch_update)
-    - [cell_height()](#cell_height)
-    - [cell_height(val)](#cell_heightval)
-    - [cell_width()](#cell_width)
+    - [addWidget(el, x, y, width, height, autoPosition)](#addwidgetel-x-y-width-height-autoposition)
+    - [batchUpdate()](#batchupdate)
+    - [cellHeight()](#cellheight)
+    - [cellHeight(val)](#cellheightval)
+    - [cellWidth()](#cellwidth)
     - [commit()](#commit)
     - [destroy()](#destroy)
     - [disable()](#disable)
     - [enable()](#enable)
-    - [get_cell_from_pixel(position)](#get_cell_from_pixelposition)
-    - [is_area_empty(x, y, width, height)](#is_area_emptyx-y-width-height)
+    - [getCellFromPixel(position)](#getcellfrompixelposition)
+    - [isAreaEmpty(x, y, width, height)](#isareaemptyx-y-width-height)
     - [locked(el, val)](#lockedel-val)
-    - [min_width(el, val)](#min_widthel-val)
-    - [min_height(el, val)](#min_heightel-val)
+    - [makeWidget(el)](#makewidgetel)
+    - [maxHeight(el, val)](#maxheightel-val)
+    - [minHeight(el, val)](#minheightel-val)
+    - [maxWidth(el, val)](#maxwidthel-val)
+    - [minWidth(el, val)](#minwidthel-val)
     - [movable(el, val)](#movableel-val)
     - [move(el, x, y)](#moveel-x-y)
-    - [remove_widget(el, detach_node)](#remove_widgetel-detach_node)
-    - [remove_all()](#remove_all)
+    - [removeWidget(el, detachNode)](#removewidgetel-detachnode)
+    - [removeAll()](#removeall)
     - [resize(el, width, height)](#resizeel-width-height)
     - [resizable(el, val)](#resizableel-val)
-    - [set_static(static_value)](#set_staticstatic_value)
+    - [setStatic(static_value)](#setstaticstatic_value)
     - [update(el, x, y, width, height)](#updateel-x-y-width-height)
-    - [will_it_fit(x, y, width, height, auto_position)](#will_it_fitx-y-width-height-auto_position)
+    - [willItFit(x, y, width, height, autoPosition)](#willitfitx-y-width-height-autoposition)
   - [Utils](#utils)
     - [GridStackUI.Utils.sort(nodes[, dir[, width]])](#gridstackuiutilssortnodes-dir-width)
   - [Touch devices support](#touch-devices-support)
@@ -96,7 +99,6 @@ Usage
 * [lodash.js](https://lodash.com) (>= 3.5.0)
 * [jQuery](http://jquery.com) (>= 1.11.0)
 * [jQuery UI](http://jqueryui.com) (>= 1.11.0). Minimum required components: Core, Widget, Mouse, Draggable, Resizable
-* (Optional) [knockout.js](http://knockoutjs.com) (>= 3.2.0)
 * (Optional) [jquery-ui-touch-punch](https://github.com/furf/jquery-ui-touch-punch) for touch-based devices support
 
 Note: You can still use [underscore.js](http://underscorejs.org) (>= 1.7.0) instead of lodash.js
@@ -151,28 +153,34 @@ $(function () {
 </script>
 ```
 
+## Migrating to v0.2.5
+
+As of v0.2.5 all methods and parameters are in camel case to respect [JavaScript Style Guide and Coding Conventions](http://www.w3schools.com/js/js_conventions.asp).
+All old methods and parameters are marked as deprecated and still available but a warning will be displayed in js console. They will be available until v1.0
+when they will be completely removed.
+
 ## Options
 
-- `always_show_resize_handle` - if `true` the resizing handles are shown even if the user is not hovering over the widget
+- `alwaysShowResizeHandle` - if `true` the resizing handles are shown even if the user is not hovering over the widget
     (default: `false`)
 - `animate` - turns animation on (default: `false`)
 - `auto` - if `false` gridstack will not initialize existing items (default: `true`)
-- `cell_height` - one cell height (default: `60`). Can be:
+- `cellHeight` - one cell height (default: `60`). Can be:
  - an integer (px)
  - a string (ex: '10em', '100px', '10rem')
  - 0 or null, in which case the library will not generate styles for rows. Everything will have to be defined in CSS files.
 - `draggable` - allows to override jQuery UI draggable options. (default: `{handle: '.grid-stack-item-content', scroll: true, appendTo: 'body'}`)
 - `handle` - draggable handle selector (default: `'.grid-stack-item-content'`)
-- `handle_class` - draggable handle class (e.g. `'grid-stack-item-content'`). If set `handle` is ignored (default: `null`)
+- `handleClass` - draggable handle class (e.g. `'grid-stack-item-content'`). If set `handle` is ignored (default: `null`)
 - `height` - maximum rows amount. Default is `0` which means no maximum rows
 - `float` - enable floating widgets (default: `false`) See [example](http://troolee.github.io/gridstack.js/demo/float.html)
-- `item_class` - widget class (default: `'grid-stack-item'`)
-- `min_width` - minimal width. If window width is less, grid will be shown in one-column mode. You need also update your css file (`@media (max-width: 768px) {...}`) with corresponding value (default: `768`)
-- `placeholder_class` - class for placeholder (default: `'grid-stack-placeholder'`)
-- `placeholder_text` - placeholder default content (default: `''`)
+- `itemClass` - widget class (default: `'grid-stack-item'`)
+- `minWidth` - minimal width. If window width is less, grid will be shown in one-column mode. You need also update your css file (`@media (max-width: 768px) {...}`) with corresponding value (default: `768`)
+- `placeholderClass` - class for placeholder (default: `'grid-stack-placeholder'`)
+- `placeholderText` - placeholder default content (default: `''`)
 - `resizable` - allows to override jQuery UI resizable options. (default: `{autoHide: true, handles: 'se'}`)
-- `static_grid` - makes grid static (default `false`). If true widgets are not movable/resizable. You don't even need jQueryUI draggable/resizable.  A CSS class `grid-stack-static` is also added to the container.
-- `vertical_margin` - vertical gap size (default: `20`). Can be:
+- `staticGrid` - makes grid static (default `false`). If true widgets are not movable/resizable. You don't even need jQueryUI draggable/resizable.  A CSS class `grid-stack-static` is also added to the container.
+- `verticalMargin` - vertical gap size (default: `20`). Can be:
  - an integer (px)
  - a string (ex: '2em', '20px', '2rem')
 - `width` - amount of columns (default: `12`)
@@ -204,12 +212,12 @@ to completely lock the widget.
 Occurs when adding/removing widgets or existing widgets change their position/size
 
 ```javascript
-var serialize_widget_map = function (items) {
+var serializeWidgetMap = function (items) {
     console.log(items);
 };
 
 $('.grid-stack').on('change', function (e, items) {
-    serialize_widget_map(items);
+    serializeWidgetMap(items);
 });
 ```
 
@@ -267,7 +275,7 @@ $('.grid-stack').on('enable', function(event) {
 
 ## API
 
-### add_widget(el, x, y, width, height, auto_position)
+### addWidget(el, x, y, width, height, autoPosition)
 
 Creates new widget and returns it.
 
@@ -275,7 +283,7 @@ Parameters:
 
 - `el` - widget to add
 - `x`, `y`, `width`, `height` - widget position/dimensions (Optional)
-- `auto_position` - if `true` then `x`, `y` parameters will be ignored and widget will be places on the first available
+- `autoPosition` - if `true` then `x`, `y` parameters will be ignored and widget will be places on the first available
 position
 
 Widget will be always placed even if result height is more than actual grid height. You need to use `will_it_fit` method
@@ -285,50 +293,33 @@ before calling `add_widget` for additional check.
 $('.grid-stack').gridstack();
 
 var grid = $('.grid-stack').data('gridstack');
-grid.add_widget(el, 0, 0, 3, 2, true);
+grid.addWidget(el, 0, 0, 3, 2, true);
 ```
 
-### make_widget(el)
-
-If you add elements to your gridstack container by hand, you have to tell gridstack afterwards to make them widgets. If you want gridstack to add the elements for you, use `add_widget` instead.
-Makes the given element a widget and returns it.
-
-Parameters:
-
-- `el` - element to convert to a widget
-
-```javascript
-$('.grid-stack').gridstack();
-
-$('.grid-stack').append('<div id="gsi-1" data-gs-x="0" data-gs-y="0" data-gs-width="3" data-gs-height="2" data-gs-auto-position="1"></div>')
-var grid = $('.grid-stack').data('gridstack');
-grid.make_widget('gsi-1');
-```
-
-### batch_update()
+### batchUpdate()
 
 Initailizes batch updates. You will see no changes until `commit` method is called.
 
-### cell_height()
+### cellHeight()
 
 Gets current cell height.
 
-### cell_height(val)
+### cellHeight(val)
 
 Update current cell height. This method rebuilds an internal CSS stylesheet. Note: You can expect performance issues if
 call this method too often.
 
 ```javascript
-grid.cell_height(grid.cell_width() * 1.2);
+grid.cellHeight(grid.cellWidth() * 1.2);
 ```
 
-### cell_width()
+### cellWidth()
 
 Gets current cell width.
 
 ### commit()
 
-Finishes batch updates. Updates DOM nodes. You must call it after `batch_update`.
+Finishes batch updates. Updates DOM nodes. You must call it after `batchUpdate`.
 
 ### destroy()
 
@@ -352,7 +343,7 @@ grid.movable('.grid-stack-item', true);
 grid.resizable('.grid-stack-item', true);
 ```
 
-### get_cell_from_pixel(position)
+### getCellFromPixel(position)
 
 Get the position of the cell under a pixel on screen.
 
@@ -362,7 +353,7 @@ Parameters :
 
 Returns an object with properties `x` and `y` i.e. the column and row in the grid.
 
-### is_area_empty(x, y, width, height)
+### isAreaEmpty(x, y, width, height)
 
 Checks if specified area is empty.
 
@@ -373,19 +364,50 @@ Locks/unlocks widget.
 - `el` - widget to modify.
 - `val` - if `true` widget will be locked.
 
-### min_width(el, val)
+### makeWidget(el)
 
-Set the minWidth for a widget.
+If you add elements to your gridstack container by hand, you have to tell gridstack afterwards to make them widgets. If you want gridstack to add the elements for you, use `add_widget` instead.
+Makes the given element a widget and returns it.
+
+Parameters:
+
+- `el` - element to convert to a widget
+
+```javascript
+$('.grid-stack').gridstack();
+
+$('.grid-stack').append('<div id="gsi-1" data-gs-x="0" data-gs-y="0" data-gs-width="3" data-gs-height="2" data-gs-auto-position="1"></div>')
+var grid = $('.grid-stack').data('gridstack');
+grid.makeWidget('gsi-1');
+```
+
+### maxHeight(el, val)
+
+Set the `maxHeight` for a widget.
+
+- `el` - widget to modify.
+- `val` - A numeric value of the number of rows
+
+### minHeight(el, val)
+
+Set the `minHeight` for a widget.
+
+- `el` - widget to modify.
+- `val` - A numeric value of the number of rows
+
+### maxWidth(el, val)
+
+Set the `maxWidth` for a widget.
 
 - `el` - widget to modify.
 - `val` - A numeric value of the number of columns
 
-### min_height(el, val)
+### minWidth(el, val)
 
-Set the minHeight for a widget.
+Set the `minWidth` for a widget.
 
 - `el` - widget to modify.
-- `val` - A numeric value of the number of rows
+- `val` - A numeric value of the number of columns
 
 ### movable(el, val)
 
@@ -403,16 +425,16 @@ Parameters:
 - `el` - widget to move
 - `x`, `y` - new position. If value is `null` or `undefined` it will be ignored.
 
-### remove_widget(el, detach_node)
+### removeWidget(el, detachNode)
 
 Removes widget from the grid.
 
 Parameters:
 
 - `el` - widget to remove.
-- `detach_node` - if `false` DOM node won't be removed from the tree (Optional. Default `true`).
+- `detachNode` - if `false` DOM node won't be removed from the tree (Optional. Default `true`).
 
-### remove_all()
+### removeAll()
 
 Removes all widgets from the grid.
 
@@ -432,7 +454,7 @@ Enables/Disables resizing.
 - `el` - widget to modify
 - `val` - if `true` widget will be resizable.
 
-### set_static(static_value)
+### setStatic(static_value)
 
 Toggle the grid static state.  Also toggle the `grid-stack-static` class.
 
@@ -448,14 +470,14 @@ Parameters:
 
 Updates widget position/size.
 
-### will_it_fit(x, y, width, height, auto_position)
+### willItFit(x, y, width, height, autoPosition)
 
 Returns `true` if the `height` of the grid will be less the vertical constraint. Always returns `true` if grid doesn't
 have `height` constraint.
 
 ```javascript
-if (grid.will_it_fit(new_node.x, new_node.y, new_node.width, new_node.height, true)) {
-    grid.add_widget(new_node.el, new_node.x, new_node.y, new_node.width, new_node.height, true);
+if (grid.willItFit(newNode.x, newNode.y, newNode.width, newNode.height, true)) {
+    grid.addWidget(newNode.el, newNode.x, newNode.y, newNode.width, newNode.height, true);
 }
 else {
     alert('Not enough free space to place the widget');
@@ -487,7 +509,7 @@ working on touch-based devices.
 <script src="gridstack.js"></script>
 ```
 
-Also `always_show_resize_handle` option may be useful:
+Also `alwaysShowResizeHandle` option may be useful:
 
 ```javascript
 $(function () {
@@ -517,9 +539,9 @@ ko.components.register('dashboard-grid', {
                     }
 
                     var item = _.find(items, function (i) { return i.nodeType == 1 });
-                    grid.add_widget(item);
+                    grid.addWidget(item);
                     ko.utils.domNodeDisposal.addDisposeCallback(item, function () {
-                        grid.remove_widget(item);
+                        grid.removeWidget(item);
                     });
                 };
             };
@@ -695,10 +717,10 @@ var serialization = [
 serialization = GridStackUI.Utils.sort(serialization);
 
 var grid = $('.grid-stack').data('gridstack');
-grid.remove_all();
+grid.removeAll();
 
 _.each(serialization, function (node) {
-    grid.add_widget($('<div><div class="grid-stack-item-content" /></div>'),
+    grid.addWidget($('<div><div class="grid-stack-item-content" /></div>'),
         node.x, node.y, node.width, node.height);
 });
 ```
@@ -780,7 +802,9 @@ Changes
 
 #### v0.2.5-dev (Development version)
 
-- `cell_height` and `vertical_margin` can now be string (e.g. '3em', '20px') (Thanks to @jlowcs)
+- update names to respect js naming convention
+- `cellHeight` and `verticalMargin` can now be string (e.g. '3em', '20px') (Thanks to @jlowcs)
+- add `maxWidth`/`maxHeight` methods.
 
 #### v0.2.4 (2016-02-15)
 
diff --git a/demo/float.html b/demo/float.html
index 638ec2a..fe5bc7c 100644
--- a/demo/float.html
+++ b/demo/float.html
@@ -68,18 +68,19 @@
 
                 this.grid = $('.grid-stack').data('gridstack');
 
-                this.add_new_widget = function () {
+                this.addNewWidget = function () {
                     var node = this.items.pop() || {
                                 x: 12 * Math.random(),
                                 y: 5 * Math.random(),
                                 width: 1 + 3 * Math.random(),
                                 height: 1 + 3 * Math.random()
                             };
-                    this.grid.add_widget($('<div><div class="grid-stack-item-content" /><div/>'),
+                    this.grid.addWidget($('<div><div class="grid-stack-item-content" /><div/>'),
                         node.x, node.y, node.width, node.height);
+                    return false;
                 }.bind(this);
 
-                $('#add-new-widget').click(this.add_new_widget);
+                $('#add-new-widget').click(this.addNewWidget);
             };
         });
     </script>
diff --git a/demo/knockout.html b/demo/knockout.html
index 2a7a360..dd16b3e 100644
--- a/demo/knockout.html
+++ b/demo/knockout.html
@@ -38,7 +38,7 @@
         <h1>knockout.js Demo</h1>
 
         <div>
-            <button data-bind="click: add_new_widget">Add new widget</button>
+            <button data-bind="click: addNewWidget">Add new widget</button>
         </div>
 
         <br>
@@ -64,9 +64,9 @@
                             }
 
                             var item = _.find(items, function (i) { return i.nodeType == 1 });
-                            grid.add_widget(item);
+                            grid.addWidget(item);
                             ko.utils.domNodeDisposal.addDisposeCallback(item, function () {
-                                grid.remove_widget(item);
+                                grid.removeWidget(item);
                             });
                         };
                     };
@@ -78,7 +78,7 @@
                 [
                     '<div class="grid-stack" data-bind="foreach: {data: widgets, afterRender: afterAddWidget}">',
                     '   <div class="grid-stack-item" data-bind="attr: {\'data-gs-x\': $data.x, \'data-gs-y\': $data.y, \'data-gs-width\': $data.width, \'data-gs-height\': $data.height, \'data-gs-auto-position\': $data.auto_position}">',
-                    '       <div class="grid-stack-item-content"><button data-bind="click: $root.delete_widget">Delete me</button></div>',
+                    '       <div class="grid-stack-item-content"><button data-bind="click: $root.deleteWidget">Delete me</button></div>',
                     '   </div>',
                     '</div> '
                 ].join('')
@@ -90,7 +90,7 @@
 
                 this.widgets = ko.observableArray(widgets);
 
-                this.add_new_widget = function () {
+                this.addNewWidget = function () {
                     this.widgets.push({
                         x: 0,
                         y: 0,
@@ -98,10 +98,12 @@
                         height: Math.floor(1 + 3 * Math.random()),
                         auto_position: true
                     });
+                    return false;
                 };
 
-                this.delete_widget = function (item) {
+                this.deleteWidget = function (item) {
                     self.widgets.remove(item);
+                    return false;
                 };
             };
 
diff --git a/demo/knockout2.html b/demo/knockout2.html
index af558ec..96d2819 100644
--- a/demo/knockout2.html
+++ b/demo/knockout2.html
@@ -38,7 +38,7 @@
         <h1>knockout.js Demo</h1>
 
         <div>
-            <button data-bind="click: add_new_widget">Add new widget</button>
+            <button data-bind="click: addNewWidget">Add new widget</button>
         </div>
 
         <br>
@@ -64,9 +64,9 @@
                             }
 
                             var item = _.find(items, function (i) { return i.nodeType == 1 });
-                            grid.add_widget(item);
+                            grid.addWidget(item);
                             ko.utils.domNodeDisposal.addDisposeCallback(item, function () {
-                                grid.remove_widget(item);
+                                grid.removeWidget(item);
                             });
                         };
                     };
@@ -83,7 +83,7 @@
 
                 this.widgets = ko.observableArray(widgets);
 
-                this.add_new_widget = function () {
+                this.addNewWidget = function () {
                     this.widgets.push({
                         x: 0,
                         y: 0,
@@ -91,10 +91,12 @@
                         height: Math.floor(1 + 3 * Math.random()),
                         auto_position: true
                     });
+                    return false;
                 };
 
-                this.delete_widget = function (item) {
+                this.deleteWidget = function (item) {
                     self.widgets.remove(item);
+                    return false;
                 };
             };
 
@@ -113,7 +115,7 @@
     <template id="gridstack-template">
         <div class="grid-stack" data-bind="foreach: {data: widgets, afterRender: afterAddWidget}">
            <div class="grid-stack-item" data-bind="attr: {'data-gs-x': $data.x, 'data-gs-y': $data.y, 'data-gs-width': $data.width, 'data-gs-height': $data.height, 'data-gs-auto-position': $data.auto_position}">
-               <div class="grid-stack-item-content"><button data-bind="click: $root.delete_widget">Delete me</button></div>
+               <div class="grid-stack-item-content"><button data-bind="click: $root.deleteWidget">Delete me</button></div>
            </div></div><!-- <---- NO SPACE BETWEEN THESE CLOSING TAGS -->
     </template>
 </body>
diff --git a/demo/serialization.html b/demo/serialization.html
index 06ddbc6..b8484ea 100644
--- a/demo/serialization.html
+++ b/demo/serialization.html
@@ -56,12 +56,11 @@
     <script type="text/javascript">
         $(function () {
             var options = {
-                static_grid: true
             };
             $('.grid-stack').gridstack(options);
 
             new function () {
-                this.serialized_data = [
+                this.serializedData = [
                     {x: 0, y: 0, width: 2, height: 2},
                     {x: 3, y: 1, width: 1, height: 2},
                     {x: 4, y: 1, width: 1, height: 1},
@@ -74,17 +73,18 @@
 
                 this.grid = $('.grid-stack').data('gridstack');
 
-                this.load_grid = function () {
-                    this.grid.remove_all();
-                    var items = GridStackUI.Utils.sort(this.serialized_data);
+                this.loadGrid = function () {
+                    this.grid.removeAll();
+                    var items = GridStackUI.Utils.sort(this.serializedData);
                     _.each(items, function (node) {
-                        this.grid.add_widget($('<div><div class="grid-stack-item-content" /><div/>'),
+                        this.grid.addWidget($('<div><div class="grid-stack-item-content" /><div/>'),
                             node.x, node.y, node.width, node.height);
                     }, this);
+                    return false;
                 }.bind(this);
 
-                this.save_grid = function () {
-                    this.serialized_data = _.map($('.grid-stack > .grid-stack-item:visible'), function (el) {
+                this.saveGrid = function () {
+                    this.serializedData = _.map($('.grid-stack > .grid-stack-item:visible'), function (el) {
                         el = $(el);
                         var node = el.data('_gridstack_node');
                         return {
@@ -94,18 +94,20 @@
                             height: node.height
                         };
                     }, this);
-                    $('#saved-data').val(JSON.stringify(this.serialized_data, null, '    '));
+                    $('#saved-data').val(JSON.stringify(this.serializedData, null, '    '));
+                    return false;
                 }.bind(this);
 
-                this.clear_grid = function () {
-                    this.grid.remove_all();
+                this.clearGrid = function () {
+                    this.grid.removeAll();
+                    return false;
                 }.bind(this);
 
-                $('#save-grid').click(this.save_grid);
-                $('#load-grid').click(this.load_grid);
-                $('#clear-grid').click(this.clear_grid);
+                $('#save-grid').click(this.saveGrid);
+                $('#load-grid').click(this.loadGrid);
+                $('#clear-grid').click(this.clearGrid);
 
-                this.load_grid();
+                this.loadGrid();
             };
         });
     </script>
diff --git a/demo/two.html b/demo/two.html
index a9f64f7..7219455 100644
--- a/demo/two.html
+++ b/demo/two.html
@@ -75,7 +75,7 @@
                 var grid = $(this).data('gridstack');
 
                 _.each(items, function (node) {
-                    grid.add_widget($('<div><div class="grid-stack-item-content" /><div/>'),
+                    grid.addWidget($('<div><div class="grid-stack-item-content" /><div/>'),
                         node.x, node.y, node.width, node.height);
                 }, this);
             });
diff --git a/dist/gridstack.js b/dist/gridstack.js
index 36689a4..73bdd28 100644
--- a/dist/gridstack.js
+++ b/dist/gridstack.js
@@ -9,21 +9,35 @@
     if (typeof define === 'function' && define.amd) {
         define(['jquery', 'lodash', 'jquery-ui/core', 'jquery-ui/widget', 'jquery-ui/mouse', 'jquery-ui/draggable',
             'jquery-ui/resizable'], factory);
-    }
-    else if (typeof exports !== 'undefined') {
-      try { jQuery = require('jquery'); } catch(e) {}
-      try { _ = require('lodash'); } catch(e) {}
-      factory(jQuery, _);
-    }
-    else {
+    } else if (typeof exports !== 'undefined') {
+        try { jQuery = require('jquery'); } catch (e) {}
+        try { _ = require('lodash'); } catch (e) {}
+        factory(jQuery, _);
+    } else {
         factory(jQuery, _);
     }
 })(function($, _) {
 
     var scope = window;
 
+    var obsolete = function(f, oldName, newName) {
+        var wrapper = function() {
+            console.warn('gridstack.js: Function `' + oldName + '` is deprecated as of v0.2.5 and has been replaced with `' +
+                newName + '`. It will be **completely** removed in v1.0.');
+            return f.apply(this, arguments);
+        };
+        wrapper.prototype = f.prototype;
+
+        return wrapper;
+    };
+
+    var obsoleteOpts = function(oldName, newName) {
+        console.warn('gridstack.js: Option `' + oldName + '` is deprecated as of v0.2.5 and has been replaced with `' +
+            newName + '`. It will be **completely** removed in v1.0.');
+    };
+
     var Utils = {
-        is_intercepted: function(a, b) {
+        isIntercepted: function(a, b) {
             return !(a.x + a.width <= b.x || b.x + b.width <= a.x || a.y + a.height <= b.y || b.y + b.height <= a.y);
         },
 
@@ -33,170 +47,192 @@
             return _.sortBy(nodes, function(n) { return dir * (n.x + n.y * width); });
         },
 
-        create_stylesheet: function(id) {
+        createStylesheet: function(id) {
             var style = document.createElement('style');
             style.setAttribute('type', 'text/css');
             style.setAttribute('data-gs-id', id);
             if (style.styleSheet) {
                 style.styleSheet.cssText = '';
-            }
-            else {
+            } else {
                 style.appendChild(document.createTextNode(''));
             }
             document.getElementsByTagName('head')[0].appendChild(style);
             return style.sheet;
         },
-        remove_stylesheet: function(id) {
-            $("STYLE[data-gs-id=" + id +"]").remove();
+
+        removeStylesheet: function(id) {
+            $('STYLE[data-gs-id=' + id + ']').remove();
         },
-        insert_css_rule: function(sheet, selector, rules, index) {
+
+        insertCSSRule: function(sheet, selector, rules, index) {
             if (typeof sheet.insertRule === 'function') {
                 sheet.insertRule(selector + '{' + rules + '}', index);
-            }
-            else if (typeof sheet.addRule === 'function') {
+            } else if (typeof sheet.addRule === 'function') {
                 sheet.addRule(selector, rules, index);
             }
         },
 
         toBool: function(v) {
-            if (typeof v == 'boolean')
+            if (typeof v == 'boolean') {
                 return v;
+            }
             if (typeof v == 'string') {
                 v = v.toLowerCase();
-                return !(v == '' || v == 'no' || v == 'false' || v == '0');
+                return !(v === '' || v == 'no' || v == 'false' || v == '0');
             }
             return Boolean(v);
+        },
+
+        _collisionNodeCheck: function(n) {
+            return n != this.node && Utils.isIntercepted(n, this.nn);
+        },
+
+        _didCollideFloat: function(bn) {
+            return this.n != bn &&
+                Utils.isIntercepted({x: this.n.x, y: this.newY, width: this.n.width, height: this.n.height}, bn);
+        },
+
+        _didCollide: function(bn) {
+            return Utils.isIntercepted({x: this.n.x, y: this.newY, width: this.n.width, height: this.n.height}, bn);
+        },
+
+        _isAddNodeIntercepted: function(n) {
+            return Utils.isIntercepted({x: this.x, y: this.y, width: this.node.width, height: this.node.height}, n);
         }
     };
 
-    var id_seq = 0;
+    // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+    Utils.is_intercepted = obsolete(Utils.isIntercepted, 'is_intercepted', 'isIntercepted');
 
-    var GridStackEngine = function(width, onchange, float_mode, height, items) {
+    Utils.create_stylesheet = obsolete(Utils.createStylesheet, 'create_stylesheet', 'createStylesheet');
+
+    Utils.remove_stylesheet = obsolete(Utils.removeStylesheet, 'remove_stylesheet', 'removeStylesheet');
+
+    Utils.insert_css_rule = obsolete(Utils.insertCSSRule, 'insert_css_rule', 'insertCSSRule');
+    // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+
+    var idSeq = 0;
+
+    var GridStackEngine = function(width, onchange, floatMode, height, items) {
         this.width = width;
-        this['float'] = float_mode || false;
+        this.float = floatMode || false;
         this.height = height || 0;
 
         this.nodes = items || [];
         this.onchange = onchange || function() {};
 
-        this._update_counter = 0;
-        this._float = this['float'];
+        this._updateCounter = 0;
+        this._float = this.float;
     };
 
-    GridStackEngine.prototype.batch_update = function() {
-        this._update_counter = 1;
+    GridStackEngine.prototype.batchUpdate = function() {
+        this._updateCounter = 1;
         this.float = true;
     };
 
     GridStackEngine.prototype.commit = function() {
-        this._update_counter = 0;
-        if (this._update_counter == 0) {
+        this._updateCounter = 0;
+        if (this._updateCounter === 0) {
             this.float = this._float;
-            this._pack_nodes();
+            this._packNodes();
             this._notify();
         }
     };
 
-    GridStackEngine.prototype._fix_collisions = function(node) {
-        this._sort_nodes(-1);
+    GridStackEngine.prototype._fixCollisions = function(node) {
+        var self = this;
+        this._sortNodes(-1);
 
-        var nn = node, has_locked = Boolean(_.find(this.nodes, function(n) { return n.locked }));
-        if (!this.float && !has_locked) {
+        var nn = node;
+        var hasLocked = Boolean(_.find(this.nodes, function(n) { return n.locked; }));
+        if (!this.float && !hasLocked) {
             nn = {x: 0, y: node.y, width: this.width, height: node.height};
         }
-
         while (true) {
-            var collision_node = _.find(this.nodes, _.bind(function(n) {
-                return n != node && Utils.is_intercepted(n, nn);
-            }, this));
-            if (typeof collision_node == 'undefined') {
+            var collisionNode = _.find(this.nodes, _.bind(Utils._collisionNodeCheck, {node: node, nn: nn}));
+            if (typeof collisionNode == 'undefined') {
                 return;
             }
-            this.move_node(collision_node, collision_node.x, node.y + node.height,
-                collision_node.width, collision_node.height, true);
+            this.moveNode(collisionNode, collisionNode.x, node.y + node.height,
+                collisionNode.width, collisionNode.height, true);
         }
     };
 
-    GridStackEngine.prototype.is_area_empty = function(x, y, width, height) {
+    GridStackEngine.prototype.isAreaEmpty = function(x, y, width, height) {
         var nn = {x: x || 0, y: y || 0, width: width || 1, height: height || 1};
-        var collision_node = _.find(this.nodes, _.bind(function(n) {
-            return Utils.is_intercepted(n, nn);
+        var collisionNode = _.find(this.nodes, _.bind(function(n) {
+            return Utils.isIntercepted(n, nn);
         }, this));
-        return collision_node == null;
+        return collisionNode === null;
     };
 
-    GridStackEngine.prototype._sort_nodes = function(dir) {
+    GridStackEngine.prototype._sortNodes = function(dir) {
         this.nodes = Utils.sort(this.nodes, dir, this.width);
     };
 
-    GridStackEngine.prototype._pack_nodes = function() {
-        this._sort_nodes();
+    GridStackEngine.prototype._packNodes = function() {
+        this._sortNodes();
 
         if (this.float) {
             _.each(this.nodes, _.bind(function(n, i) {
-                if (n._updating || typeof n._orig_y == 'undefined' || n.y == n._orig_y)
+                if (n._updating || typeof n._origY == 'undefined' || n.y == n._origY) {
                     return;
+                }
 
-                var new_y = n.y;
-                while (new_y >= n._orig_y) {
-                    var collision_node = _.chain(this.nodes)
-                        .find(function(bn) {
-                            return n != bn &&
-                                Utils.is_intercepted({x: n.x, y: new_y, width: n.width, height: n.height}, bn);
-                        })
+                var newY = n.y;
+                while (newY >= n._origY) {
+                    var collisionNode = _.chain(this.nodes)
+                        .find(_.bind(Utils._didCollide, {n: n, newY: newY}))
                         .value();
 
-                    if (!collision_node) {
+                    if (!collisionNode) {
                         n._dirty = true;
-                        n.y = new_y;
+                        n.y = newY;
                     }
-                    --new_y;
+                    --newY;
                 }
             }, this));
-        }
-        else {
+        } else {
             _.each(this.nodes, _.bind(function(n, i) {
-                if (n.locked)
+                if (n.locked) {
                     return;
+                }
                 while (n.y > 0) {
-                    var new_y = n.y - 1;
-                    var can_be_moved = i == 0;
+                    var newY = n.y - 1;
+                    var canBeMoved = i === 0;
 
                     if (i > 0) {
-                        var collision_node = _.chain(this.nodes)
+                        var collisionNode = _.chain(this.nodes)
                             .take(i)
-                            .find(function(bn) {
-                                return Utils.is_intercepted({x: n.x, y: new_y, width: n.width, height: n.height}, bn);
-                            })
+                            .find(_.bind(Utils._didCollide, {n: n, newY: newY}))
                             .value();
-                        can_be_moved = typeof collision_node == 'undefined';
+                        canBeMoved = typeof collisionNode == 'undefined';
                     }
 
-                    if (!can_be_moved) {
+                    if (!canBeMoved) {
                         break;
                     }
-                    n._dirty = n.y != new_y;
-                    n.y = new_y;
+                    n._dirty = n.y != newY;
+                    n.y = newY;
                 }
             }, this));
         }
     };
 
-    GridStackEngine.prototype._prepare_node = function(node, resizing) {
-        node = _.defaults(node || {}, {width: 1, height: 1, x: 0, y: 0 });
+    GridStackEngine.prototype._prepareNode = function(node, resizing) {
+        node = _.defaults(node || {}, {width: 1, height: 1, x: 0, y: 0});
 
         node.x = parseInt('' + node.x);
         node.y = parseInt('' + node.y);
         node.width = parseInt('' + node.width);
         node.height = parseInt('' + node.height);
-        node.auto_position = node.auto_position || false;
-        node.no_resize = node.no_resize || false;
-        node.no_move = node.no_move || false;
+        node.autoPosition = node.autoPosition || false;
+        node.noResize = node.noResize || false;
+        node.noMove = node.noMove || false;
 
         if (node.width > this.width) {
             node.width = this.width;
-        }
-        else if (node.width < 1) {
+        } else if (node.width < 1) {
             node.width = 1;
         }
 
@@ -211,8 +247,7 @@
         if (node.x + node.width > this.width) {
             if (resizing) {
                 node.width = this.width - node.x;
-            }
-            else {
+            } else {
                 node.x = this.width - node.width;
             }
         }
@@ -225,44 +260,43 @@
     };
 
     GridStackEngine.prototype._notify = function() {
-        if (this._update_counter) {
+        if (this._updateCounter) {
             return;
         }
-        var deleted_nodes = Array.prototype.slice.call(arguments, 1).concat(this.get_dirty_nodes());
-        deleted_nodes = deleted_nodes.concat(this.get_dirty_nodes());
-        this.onchange(deleted_nodes);
+        var deletedNodes = Array.prototype.slice.call(arguments, 1).concat(this.getDirtyNodes());
+        deletedNodes = deletedNodes.concat(this.getDirtyNodes());
+        this.onchange(deletedNodes);
     };
 
-    GridStackEngine.prototype.clean_nodes = function() {
-        _.each(this.nodes, function(n) {n._dirty = false });
+    GridStackEngine.prototype.cleanNodes = function() {
+        _.each(this.nodes, function(n) {n._dirty = false; });
     };
 
-    GridStackEngine.prototype.get_dirty_nodes = function() {
+    GridStackEngine.prototype.getDirtyNodes = function() {
         return _.filter(this.nodes, function(n) { return n._dirty; });
     };
 
-    GridStackEngine.prototype.add_node = function(node) {
-        node = this._prepare_node(node);
+    GridStackEngine.prototype.addNode = function(node) {
+        node = this._prepareNode(node);
 
-        if (typeof node.max_width != 'undefined') node.width = Math.min(node.width, node.max_width);
-        if (typeof node.max_height != 'undefined') node.height = Math.min(node.height, node.max_height);
-        if (typeof node.min_width != 'undefined') node.width = Math.max(node.width, node.min_width);
-        if (typeof node.min_height != 'undefined') node.height = Math.max(node.height, node.min_height);
+        if (typeof node.maxWidth != 'undefined') { node.width = Math.min(node.width, node.maxWidth); }
+        if (typeof node.maxHeight != 'undefined') { node.height = Math.min(node.height, node.maxHeight); }
+        if (typeof node.minWidth != 'undefined') { node.width = Math.max(node.width, node.minWidth); }
+        if (typeof node.minHeight != 'undefined') { node.height = Math.max(node.height, node.minHeight); }
 
-        node._id = ++id_seq;
+        node._id = ++idSeq;
         node._dirty = true;
 
-        if (node.auto_position) {
-            this._sort_nodes();
+        if (node.autoPosition) {
+            this._sortNodes();
 
             for (var i = 0;; ++i) {
-                var x = i % this.width, y = Math.floor(i / this.width);
+                var x = i % this.width;
+                var y = Math.floor(i / this.width);
                 if (x + node.width > this.width) {
                     continue;
                 }
-                if (!_.find(this.nodes, function(n) {
-                    return Utils.is_intercepted({x: x, y: y, width: node.width, height: node.height}, n);
-                })) {
+                if (!_.find(this.nodes, _.bind(Utils._isAddNodeIntercepted, {x: x, y: y, node: node}))) {
                     node.x = x;
                     node.y = y;
                     break;
@@ -272,26 +306,27 @@
 
         this.nodes.push(node);
 
-        this._fix_collisions(node);
-        this._pack_nodes();
+        this._fixCollisions(node);
+        this._packNodes();
         this._notify();
         return node;
     };
 
-    GridStackEngine.prototype.remove_node = function(node) {
+    GridStackEngine.prototype.removeNode = function(node) {
         node._id = null;
         this.nodes = _.without(this.nodes, node);
-        this._pack_nodes();
+        this._packNodes();
         this._notify(node);
     };
 
-    GridStackEngine.prototype.can_move_node = function(node, x, y, width, height) {
-        var has_locked = Boolean(_.find(this.nodes, function(n) { return n.locked }));
+    GridStackEngine.prototype.canMoveNode = function(node, x, y, width, height) {
+        var hasLocked = Boolean(_.find(this.nodes, function(n) { return n.locked; }));
 
-        if (!this.height && !has_locked)
+        if (!this.height && !hasLocked) {
             return true;
+        }
 
-        var cloned_node;
+        var clonedNode;
         var clone = new GridStackEngine(
             this.width,
             null,
@@ -299,50 +334,53 @@
             0,
             _.map(this.nodes, function(n) {
                 if (n == node) {
-                    cloned_node = $.extend({}, n);
-                    return cloned_node;
+                    clonedNode = $.extend({}, n);
+                    return clonedNode;
                 }
                 return $.extend({}, n);
             }));
 
-        clone.move_node(cloned_node, x, y, width, height);
+        clone.moveNode(clonedNode, x, y, width, height);
 
         var res = true;
 
-        if (has_locked)
+        if (hasLocked) {
             res &= !Boolean(_.find(clone.nodes, function(n) {
-                return n != cloned_node && Boolean(n.locked) && Boolean(n._dirty);
+                return n != clonedNode && Boolean(n.locked) && Boolean(n._dirty);
             }));
-        if (this.height)
-            res &= clone.get_grid_height() <= this.height;
+        }
+        if (this.height) {
+            res &= clone.getGridHeight() <= this.height;
+        }
 
         return res;
     };
 
-    GridStackEngine.prototype.can_be_placed_with_respect_to_height = function(node) {
-        if (!this.height)
+    GridStackEngine.prototype.canBePlacedWithRespectToHeight = function(node) {
+        if (!this.height) {
             return true;
+        }
 
         var clone = new GridStackEngine(
             this.width,
             null,
             this.float,
             0,
-            _.map(this.nodes, function(n) { return $.extend({}, n) }));
-        clone.add_node(node);
-        return clone.get_grid_height() <= this.height;
+            _.map(this.nodes, function(n) { return $.extend({}, n); }));
+        clone.addNode(node);
+        return clone.getGridHeight() <= this.height;
     };
 
-    GridStackEngine.prototype.move_node = function(node, x, y, width, height, no_pack) {
-        if (typeof x != 'number') x = node.x;
-        if (typeof y != 'number') y = node.y;
-        if (typeof width != 'number') width = node.width;
-        if (typeof height != 'number') height = node.height;
+    GridStackEngine.prototype.moveNode = function(node, x, y, width, height, noPack) {
+        if (typeof x != 'number') { x = node.x; }
+        if (typeof y != 'number') { y = node.y; }
+        if (typeof width != 'number') { width = node.width; }
+        if (typeof height != 'number') { height = node.height; }
 
-        if (typeof node.max_width != 'undefined') width = Math.min(width, node.max_width);
-        if (typeof node.max_height != 'undefined') height = Math.min(height, node.max_height);
-        if (typeof node.min_width != 'undefined') width = Math.max(width, node.min_width);
-        if (typeof node.min_height != 'undefined') height = Math.max(height, node.min_height);
+        if (typeof node.maxWidth != 'undefined') { width = Math.min(width, node.maxWidth); }
+        if (typeof node.maxHeight != 'undefined') { height = Math.min(height, node.maxHeight); }
+        if (typeof node.minWidth != 'undefined') { width = Math.max(width, node.minWidth); }
+        if (typeof node.minHeight != 'undefined') { height = Math.max(height, node.minHeight); }
 
         if (node.x == x && node.y == y && node.width == width && node.height == height) {
             return node;
@@ -356,30 +394,30 @@
         node.width = width;
         node.height = height;
 
-        node = this._prepare_node(node, resizing);
+        node = this._prepareNode(node, resizing);
 
-        this._fix_collisions(node);
-        if (!no_pack) {
-            this._pack_nodes();
+        this._fixCollisions(node);
+        if (!noPack) {
+            this._packNodes();
             this._notify();
         }
         return node;
     };
 
-    GridStackEngine.prototype.get_grid_height = function() {
+    GridStackEngine.prototype.getGridHeight = function() {
         return _.reduce(this.nodes, function(memo, n) { return Math.max(memo, n.y + n.height); }, 0);
     };
 
-    GridStackEngine.prototype.begin_update = function(node) {
+    GridStackEngine.prototype.beginUpdate = function(node) {
         _.each(this.nodes, function(n) {
-            n._orig_y = n.y;
+            n._origY = n.y;
         });
         node._updating = true;
     };
 
-    GridStackEngine.prototype.end_update = function() {
+    GridStackEngine.prototype.endUpdate = function() {
         _.each(this.nodes, function(n) {
-            n._orig_y = n.y;
+            n._origY = n.y;
         });
         var n = _.find(this.nodes, function(n) { return n._updating; });
         if (n) {
@@ -388,79 +426,128 @@
     };
 
     var GridStack = function(el, opts) {
-        var self = this, one_column_mode;
+        var self = this;
+        var oneColumnMode;
 
         opts = opts || {};
 
         this.container = $(el);
 
-        opts.item_class = opts.item_class || 'grid-stack-item';
-        var is_nested = this.container.closest('.' + opts.item_class).size() > 0;
+        // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+        if (typeof opts.handle_class !== 'undefined') {
+            opts.handleClass = opts.handle_class;
+            obsoleteOpts('handle_class', 'handleClass');
+        }
+        if (typeof opts.item_class !== 'undefined') {
+            opts.itemClass = opts.item_class;
+            obsoleteOpts('item_class', 'itemClass');
+        }
+        if (typeof opts.placeholder_class !== 'undefined') {
+            opts.placeholderClass = opts.placeholder_class;
+            obsoleteOpts('placeholder_class', 'placeholderClass');
+        }
+        if (typeof opts.placeholder_text !== 'undefined') {
+            opts.placeholderText = opts.placeholder_text;
+            obsoleteOpts('placeholder_text', 'placeholderText');
+        }
+        if (typeof opts.item_class !== 'undefined') {
+            opts.itemClass = opts.item_class;
+            obsoleteOpts('item_class', 'itemClass');
+        }
+        if (typeof opts.cell_height !== 'undefined') {
+            opts.cellHeight = opts.cell_height;
+            obsoleteOpts('cell_height', 'cellHeight');
+        }
+        if (typeof opts.vertical_margin !== 'undefined') {
+            opts.verticalMargin = opts.vertical_margin;
+            obsoleteOpts('vertical_margin', 'verticalMargin');
+        }
+        if (typeof opts.min_width !== 'undefined') {
+            opts.minWidth = opts.min_width;
+            obsoleteOpts('min_width', 'minWidth');
+        }
+        if (typeof opts.static_grid !== 'undefined') {
+            opts.staticGrid = opts.static_grid;
+            obsoleteOpts('static_grid', 'staticGrid');
+        }
+        if (typeof opts.is_nested !== 'undefined') {
+            opts.isNested = opts.is_nested;
+            obsoleteOpts('is_nested', 'isNested');
+        }
+        if (typeof opts.always_show_resize_handle !== 'undefined') {
+            opts.alwaysShowResizeHandle = opts.always_show_resize_handle;
+            obsoleteOpts('always_show_resize_handle', 'alwaysShowResizeHandle');
+        }
+        // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+
+        opts.itemClass = opts.itemClass || 'grid-stack-item';
+        var isNested = this.container.closest('.' + opts.itemClass).size() > 0;
 
         this.opts = _.defaults(opts || {}, {
             width: parseInt(this.container.attr('data-gs-width')) || 12,
             height: parseInt(this.container.attr('data-gs-height')) || 0,
-            item_class: 'grid-stack-item',
-            placeholder_class: 'grid-stack-placeholder',
-            placeholder_text: '',
+            itemClass: 'grid-stack-item',
+            placeholderClass: 'grid-stack-placeholder',
+            placeholderText: '',
             handle: '.grid-stack-item-content',
-            handle_class: null,
-            cell_height: 60,
-            vertical_margin: 20,
+            handleClass: null,
+            cellHeight: 60,
+            verticalMargin: 20,
             auto: true,
-            min_width: 768,
+            minWidth: 768,
             float: false,
-            static_grid: false,
+            staticGrid: false,
             _class: 'grid-stack-instance-' + (Math.random() * 10000).toFixed(0),
             animate: Boolean(this.container.attr('data-gs-animate')) || false,
-            always_show_resize_handle: opts.always_show_resize_handle || false,
+            alwaysShowResizeHandle: opts.alwaysShowResizeHandle || false,
             resizable: _.defaults(opts.resizable || {}, {
-                autoHide: !(opts.always_show_resize_handle || false),
+                autoHide: !(opts.alwaysShowResizeHandle || false),
                 handles: 'se'
             }),
             draggable: _.defaults(opts.draggable || {}, {
-                handle: (opts.handle_class ? '.' + opts.handle_class : (opts.handle ? opts.handle : '')) || '.grid-stack-item-content',
+                handle: (opts.handleClass ? '.' + opts.handleClass : (opts.handle ? opts.handle : '')) ||
+                    '.grid-stack-item-content',
                 scroll: false,
                 appendTo: 'body'
             })
         });
-        this.opts.is_nested = is_nested;
+        this.opts.isNested = isNested;
 
-        this.cell_height(this.opts.cell_height, true);
-        this.vertical_margin(this.opts.vertical_margin, true);
+        this.cellHeight(this.opts.cellHeight, true);
+        this.verticalMargin(this.opts.verticalMargin, true);
 
         this.container.addClass(this.opts._class);
 
-        this._set_static_class();
+        this._setStaticClass();
 
-        if (is_nested) {
+        if (isNested) {
             this.container.addClass('grid-stack-nested');
         }
 
-        this._init_styles();
+        this._initStyles();
 
         this.grid = new GridStackEngine(this.opts.width, function(nodes) {
-            var max_height = 0;
+            var maxHeight = 0;
             _.each(nodes, function(n) {
-                if (n._id == null) {
+                if (n._id === null) {
                     n.el.remove();
-                }
-                else {
+                } else {
                     n.el
                         .attr('data-gs-x', n.x)
                         .attr('data-gs-y', n.y)
                         .attr('data-gs-width', n.width)
                         .attr('data-gs-height', n.height);
-                    max_height = Math.max(max_height, n.y + n.height);
+                    maxHeight = Math.max(maxHeight, n.y + n.height);
                 }
             });
-            self._update_styles(max_height + 10);
+            self._updateStyles(maxHeight + 10);
         }, this.opts.float, this.opts.height);
 
         if (this.opts.auto) {
             var elements = [];
             var _this = this;
-            this.container.children('.' + this.opts.item_class + ':not(.' + this.opts.placeholder_class + ')').each(function(index, el) {
+            this.container.children('.' + this.opts.itemClass + ':not(.' + this.opts.placeholderClass + ')')
+                .each(function(index, el) {
                 el = $(el);
                 elements.push({
                     el: el,
@@ -468,67 +555,68 @@
                 });
             });
             _.chain(elements).sortBy(function(x) { return x.i; }).each(function(i) {
-                self._prepare_element(i.el);
+                self._prepareElement(i.el);
             }).value();
         }
 
-        this.set_animation(this.opts.animate);
+        this.setAnimation(this.opts.animate);
 
         this.placeholder = $(
-            '<div class="' + this.opts.placeholder_class + ' ' + this.opts.item_class + '">' +
-            '<div class="placeholder-content">' + this.opts.placeholder_text + '</div></div>').hide();
+            '<div class="' + this.opts.placeholderClass + ' ' + this.opts.itemClass + '">' +
+            '<div class="placeholder-content">' + this.opts.placeholderText + '</div></div>').hide();
 
-        this._update_container_height();
+        this._updateContainerHeight();
 
-        this.on_resize_handler = function() {
-            if (self._is_one_column_mode()) {
-                if (one_column_mode)
+        this.onResizeHandler = function() {
+            if (self._isOneColumnMode()) {
+                if (oneColumnMode) {
                     return;
+                }
 
-                one_column_mode = true;
+                oneColumnMode = true;
 
-                self.grid._sort_nodes();
+                self.grid._sortNodes();
                 _.each(self.grid.nodes, function(node) {
                     self.container.append(node.el);
 
-                    if (self.opts.static_grid) {
+                    if (self.opts.staticGrid) {
                         return;
                     }
-                    if (!node.no_move) {
+                    if (!node.noMove) {
                         node.el.draggable('disable');
                     }
-                    if (!node.no_resize) {
+                    if (!node.noResize) {
                         node.el.resizable('disable');
                     }
                 });
-            }
-            else {
-                if (!one_column_mode)
+            } else {
+                if (!oneColumnMode) {
                     return;
+                }
 
-                one_column_mode = false;
+                oneColumnMode = false;
 
-                if (self.opts.static_grid) {
+                if (self.opts.staticGrid) {
                     return;
                 }
 
                 _.each(self.grid.nodes, function(node) {
-                    if (!node.no_move) {
+                    if (!node.noMove) {
                         node.el.draggable('enable');
                     }
-                    if (!node.no_resize) {
+                    if (!node.noResize) {
                         node.el.resizable('enable');
                     }
                 });
             }
         };
 
-        $(window).resize(this.on_resize_handler);
-        this.on_resize_handler();
+        $(window).resize(this.onResizeHandler);
+        this.onResizeHandler();
     };
 
-    GridStack.prototype._trigger_change_event = function(forceTrigger) {
-        var elements = this.grid.get_dirty_nodes();
+    GridStack.prototype._triggerChangeEvent = function(forceTrigger) {
+        var elements = this.grid.getDirtyNodes();
         var hasChanges = false;
 
         var eventParams = [];
@@ -542,162 +630,165 @@
         }
     };
 
-    GridStack.prototype._init_styles = function() {
-        if (!this.opts.cell_height) { //that will be handled by CSS
+    GridStack.prototype._initStyles = function() {
+        if (!this.opts.cellHeight) { //that will be handled by CSS
             return ;
         }
-        if (this._styles_id) {
-            $('[data-gs-id="' + this._styles_id + '"]').remove();
+        if (this._stylesId) {
+            $('[data-gs-id="' + this._stylesId + '"]').remove();
         }
-        this._styles_id = 'gridstack-style-' + (Math.random() * 100000).toFixed();
-        this._styles = Utils.create_stylesheet(this._styles_id);
-        if (this._styles != null)
+        this._stylesId = 'gridstack-style-' + (Math.random() * 100000).toFixed();
+        this._styles = Utils.createStylesheet(this._stylesId);
+        if (this._styles != null) {
             this._styles._max = 0;
+        }
     };
 
-    GridStack.prototype._update_styles = function(max_height) {
-        if (this._styles == null) {
+    GridStack.prototype._updateStyles = function(maxHeight) {
+        if (this._styles === null) {
             return;
         }
 
-        var prefix = '.' + this.opts._class + ' .' + this.opts.item_class,
-            self = this,
-            get_height
-        ;
+        var prefix = '.' + this.opts._class + ' .' + this.opts.itemClass;
+        var self = this;
+        var getHeight;
 
-        if (typeof max_height == 'undefined') {
-            max_height = this._styles._max;
-            this._init_styles();
-            this._update_container_height();
+        if (typeof maxHeight == 'undefined') {
+            maxHeight = this._styles._max;
+            this._initStyles();
+            this._updateContainerHeight();
         }
-
-        if (!this.opts.cell_height) { //the rest will be handled by CSS
+        if (!this.opts.cellHeight) { //the rest will be handled by CSS
             return ;
         }
-        if (this._styles._max !== 0 && max_height <= this._styles._max) {
+        if (this._styles._max !== 0 && maxHeight <= this._styles._max) {
             return ;
         }
 
-        if (!this.opts.vertical_margin || this.opts.cell_height_unit === this.opts.vertical_margin_unit) {
-            get_height = function (nbRows, nbMargins) {
-                return (self.opts.cell_height * nbRows + self.opts.vertical_margin * nbMargins) + self.opts.cell_height_unit;
-            }
+        if (!this.opts.verticalMargin || this.opts.cellHeightUnit === this.opts.verticalMarginUnit) {
+            getHeight = function(nbRows, nbMargins) {
+                return (self.opts.cellHeight * nbRows + self.opts.verticalMargin * nbMargins) + self.opts.cellHeightUnit;
+            };
         } else {
-            get_height = function (nbRows, nbMargins) {
+            getHeight = function(nbRows, nbMargins) {
                 if (!nbRows || !nbMargins) {
-                    return (self.opts.cell_height * nbRows + self.opts.vertical_margin * nbMargins) + self.opts.cell_height_unit;
+                    return (self.opts.cellHeight * nbRows + self.opts.verticalMargin * nbMargins) + self.opts.cellHeightUnit;
                 }
-                return 'calc(' + ((self.opts.cell_height * nbRows) + self.opts.cell_height_unit) + ' + ' + ((self.opts.vertical_margin * nbMargins) + self.opts.vertical_margin_unit) + ')';
-            }
+                return 'calc(' + ((self.opts.cellHeight * nbRows) + self.opts.cellHeightUnit) + ' + ' +
+                    ((self.opts.verticalMargin * nbMargins) + self.opts.verticalMarginUnit) + ')';
+            };
         }
 
-        if (this._styles._max == 0) {
-            Utils.insert_css_rule(this._styles, prefix, 'min-height: ' + get_height(1, 0) + ';', 0);
+        if (this._styles._max === 0) {
+            Utils.insertCSSRule(this._styles, prefix, 'min-height: ' + getHeight(1, 0) + ';', 0);
         }
 
-        if (max_height > this._styles._max) {
-            for (var i = this._styles._max; i < max_height; ++i) {
-                Utils.insert_css_rule(this._styles,
+        if (maxHeight > this._styles._max) {
+            for (var i = this._styles._max; i < maxHeight; ++i) {
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-height="' + (i + 1) + '"]',
-                    'height: ' + get_height(i + 1, i) + ';',
+                    'height: ' + getHeight(i + 1, i) + ';',
                     i
                 );
-                Utils.insert_css_rule(this._styles,
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-min-height="' + (i + 1) + '"]',
-                    'min-height: ' + get_height(i + 1, i) + ';',
+                    'min-height: ' + getHeight(i + 1, i) + ';',
                     i
                 );
-                Utils.insert_css_rule(this._styles,
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-max-height="' + (i + 1) + '"]',
-                    'max-height: ' + get_height(i + 1, i) + ';',
+                    'max-height: ' + getHeight(i + 1, i) + ';',
                     i
                 );
-                Utils.insert_css_rule(this._styles,
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-y="' + i + '"]',
-                    'top: ' + get_height(i, i) + ';',
+                    'top: ' + getHeight(i, i) + ';',
                     i
                 );
             }
-            this._styles._max = max_height;
+            this._styles._max = maxHeight;
         }
     };
 
-    GridStack.prototype._update_container_height = function() {
-        if (this.grid._update_counter) {
+    GridStack.prototype._updateContainerHeight = function() {
+        if (this.grid._updateCounter) {
             return;
         }
-        var height = this.grid.get_grid_height();
+        var height = this.grid.getGridHeight();
         this.container.attr('data-gs-current-height', height);
-        if (!this.opts.cell_height) {
+        if (!this.opts.cellHeight) {
             return ;
         }
-        if (!this.opts.vertical_margin) {
-            this.container.css('height', (height * (this.opts.cell_height)) + this.opts.cell_height_unit);
-        } else if (this.opts.cell_height_unit === this.opts.vertical_margin_unit) {
-            this.container.css('height', (height * (this.opts.cell_height + this.opts.vertical_margin) - this.opts.vertical_margin) + this.opts.cell_height_unit);
+        if (!this.opts.verticalMargin) {
+            this.container.css('height', (height * (this.opts.cellHeight)) + this.opts.cellHeightUnit);
+        } else if (this.opts.cellHeightUnit === this.opts.verticalMarginUnit) {
+            this.container.css('height', (height * (this.opts.cellHeight + this.opts.verticalMargin) -
+                this.opts.verticalMargin) + this.opts.cellHeightUnit);
         } else {
-            this.container.css('height', 'calc(' + ((height * (this.opts.cell_height)) + this.opts.cell_height_unit) + ' + ' + ((height * (this.opts.vertical_margin - 1)) + this.opts.vertical_margin_unit) + ')');
+            this.container.css('height', 'calc(' + ((height * (this.opts.cellHeight)) + this.opts.cellHeightUnit) +
+                ' + ' + ((height * (this.opts.verticalMargin - 1)) + this.opts.verticalMarginUnit) + ')');
         }
     };
 
-    GridStack.prototype._is_one_column_mode = function() {
+    GridStack.prototype._isOneColumnMode = function() {
         return (window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth) <=
-            this.opts.min_width;
+            this.opts.minWidth;
     };
 
-    GridStack.prototype._prepare_element = function(el) {
+    GridStack.prototype._prepareElement = function(el) {
         var self = this;
         el = $(el);
 
-        el.addClass(this.opts.item_class);
-
-        var node = self.grid.add_node({
+        el.addClass(this.opts.itemClass);
+        var node = self.grid.addNode({
             x: el.attr('data-gs-x'),
             y: el.attr('data-gs-y'),
             width: el.attr('data-gs-width'),
             height: el.attr('data-gs-height'),
-            max_width: el.attr('data-gs-max-width'),
-            min_width: el.attr('data-gs-min-width'),
-            max_height: el.attr('data-gs-max-height'),
-            min_height: el.attr('data-gs-min-height'),
-            auto_position: Utils.toBool(el.attr('data-gs-auto-position')),
-            no_resize: Utils.toBool(el.attr('data-gs-no-resize')),
-            no_move: Utils.toBool(el.attr('data-gs-no-move')),
+            maxWidth: el.attr('data-gs-max-width'),
+            minWidth: el.attr('data-gs-min-width'),
+            maxHeight: el.attr('data-gs-max-height'),
+            minHeight: el.attr('data-gs-min-height'),
+            autoPosition: Utils.toBool(el.attr('data-gs-auto-position')),
+            noResize: Utils.toBool(el.attr('data-gs-no-resize')),
+            noMove: Utils.toBool(el.attr('data-gs-no-move')),
             locked: Utils.toBool(el.attr('data-gs-locked')),
             el: el
         });
         el.data('_gridstack_node', node);
 
-        if (self.opts.static_grid) {
+        if (self.opts.staticGrid) {
             return;
         }
 
-        var cell_width, cell_height;
+        var cellWidth;
+        var cellHeight;
 
-        var drag_or_resize = function(event, ui) {
-            var x = Math.round(ui.position.left / cell_width),
-                y = Math.floor((ui.position.top + cell_height / 2) / cell_height),
-                width, height;
-            if (event.type != "drag") {
-                width = Math.round(ui.size.width / cell_width);
-                height = Math.round(ui.size.height / cell_height);
+        var dragOrResize = function(event, ui) {
+            var x = Math.round(ui.position.left / cellWidth);
+            var y = Math.floor((ui.position.top + cellHeight / 2) / cellHeight);
+            var width;
+            var height;
+            if (event.type != 'drag') {
+                width = Math.round(ui.size.width / cellWidth);
+                height = Math.round(ui.size.height / cellHeight);
             }
 
-            if (!self.grid.can_move_node(node, x, y, width, height)) {
+            if (!self.grid.canMoveNode(node, x, y, width, height)) {
                 return;
             }
-            self.grid.move_node(node, x, y, width, height);
-            self._update_container_height();
+            self.grid.moveNode(node, x, y, width, height);
+            self._updateContainerHeight();
         };
 
-        var on_start_moving = function(event, ui) {
+        var onStartMoving = function(event, ui) {
             self.container.append(self.placeholder);
             var o = $(this);
-            self.grid.clean_nodes();
-            self.grid.begin_update(node);
-            cell_width = Math.ceil(o.outerWidth() / o.attr('data-gs-width'));
-            var strict_cell_height = Math.ceil(o.outerHeight() / o.attr('data-gs-height'));
-            cell_height = self.container.height() / parseInt(self.container.attr('data-gs-current-height'));
+            self.grid.cleanNodes();
+            self.grid.beginUpdate(node);
+            cellWidth = Math.ceil(o.outerWidth() / o.attr('data-gs-width'));
+            var strictCellHeight = Math.ceil(o.outerHeight() / o.attr('data-gs-height'));
+            cellHeight = self.container.height() / parseInt(self.container.attr('data-gs-current-height'));
             self.placeholder
                 .attr('data-gs-x', o.attr('data-gs-x'))
                 .attr('data-gs-y', o.attr('data-gs-y'))
@@ -706,15 +797,15 @@
                 .show();
             node.el = self.placeholder;
 
-            el.resizable('option', 'minWidth', cell_width * (node.min_width || 1));
-            el.resizable('option', 'minHeight', strict_cell_height * (node.min_height || 1));
+            el.resizable('option', 'minWidth', cellWidth * (node.minWidth || 1));
+            el.resizable('option', 'minHeight', strictCellHeight * (node.minHeight || 1));
 
             if (event.type == 'resizestart') {
                 o.find('.grid-stack-item').trigger('resizestart');
             }
         };
 
-        var on_end_moving = function(event, ui) {
+        var onEndMoving = function(event, ui) {
             self.placeholder.detach();
             var o = $(this);
             node.el = o;
@@ -725,15 +816,15 @@
                 .attr('data-gs-width', node.width)
                 .attr('data-gs-height', node.height)
                 .removeAttr('style');
-            self._update_container_height();
-            self._trigger_change_event();
+            self._updateContainerHeight();
+            self._triggerChangeEvent();
 
-            self.grid.end_update();
+            self.grid.endUpdate();
 
-            var nested_grids = o.find('.grid-stack');
-            if (nested_grids.length && event.type == 'resizestop') {
-                nested_grids.each(function(index, el) {
-                    $(el).data('gridstack').on_resize_handler();
+            var nestedGrids = o.find('.grid-stack');
+            if (nestedGrids.length && event.type == 'resizestop') {
+                nestedGrids.each(function(index, el) {
+                    $(el).data('gridstack').onResizeHandler();
                 });
                 o.find('.grid-stack-item').trigger('resizestop');
             }
@@ -741,93 +832,94 @@
 
         el
             .draggable(_.extend(this.opts.draggable, {
-                containment: this.opts.is_nested ? this.container.parent() : null,
-                start: on_start_moving,
-                stop: on_end_moving,
-                drag: drag_or_resize
+                containment: this.opts.isNested ? this.container.parent() : null,
+                start: onStartMoving,
+                stop: onEndMoving,
+                drag: dragOrResize
             }))
             .resizable(_.extend(this.opts.resizable, {
-                start: on_start_moving,
-                stop: on_end_moving,
-                resize: drag_or_resize
+                start: onStartMoving,
+                stop: onEndMoving,
+                resize: dragOrResize
             }));
 
-        if (node.no_move || this._is_one_column_mode()) {
+        if (node.noMove || this._isOneColumnMode()) {
             el.draggable('disable');
         }
 
-        if (node.no_resize || this._is_one_column_mode()) {
+        if (node.noResize || this._isOneColumnMode()) {
             el.resizable('disable');
         }
 
         el.attr('data-gs-locked', node.locked ? 'yes' : null);
     };
 
-    GridStack.prototype.set_animation = function(enable) {
+    GridStack.prototype.setAnimation = function(enable) {
         if (enable) {
             this.container.addClass('grid-stack-animate');
-        }
-        else {
+        } else {
             this.container.removeClass('grid-stack-animate');
         }
     };
 
-    GridStack.prototype.add_widget = function(el, x, y, width, height, auto_position) {
+    GridStack.prototype.addWidget = function(el, x, y, width, height, autoPosition) {
         el = $(el);
-        if (typeof x != 'undefined') el.attr('data-gs-x', x);
-        if (typeof y != 'undefined') el.attr('data-gs-y', y);
-        if (typeof width != 'undefined') el.attr('data-gs-width', width);
-        if (typeof height != 'undefined') el.attr('data-gs-height', height);
-        if (typeof auto_position != 'undefined') el.attr('data-gs-auto-position', auto_position ? 'yes' : null);
+        if (typeof x != 'undefined') { el.attr('data-gs-x', x); }
+        if (typeof y != 'undefined') { el.attr('data-gs-y', y); }
+        if (typeof width != 'undefined') { el.attr('data-gs-width', width); }
+        if (typeof height != 'undefined') { el.attr('data-gs-height', height); }
+        if (typeof autoPosition != 'undefined') { el.attr('data-gs-auto-position', autoPosition ? 'yes' : null); }
         this.container.append(el);
-        this._prepare_element(el);
-        this._update_container_height();
-        this._trigger_change_event(true);
+        this._prepareElement(el);
+        this._updateContainerHeight();
+        this._triggerChangeEvent(true);
 
         return el;
     };
 
-    GridStack.prototype.make_widget = function(el) {
+    GridStack.prototype.makeWidget = function(el) {
         el = $(el);
-        this._prepare_element(el);
-        this._update_container_height();
-        this._trigger_change_event(true);
+        this._prepareElement(el);
+        this._updateContainerHeight();
+        this._triggerChangeEvent(true);
 
         return el;
     };
 
-    GridStack.prototype.will_it_fit = function(x, y, width, height, auto_position) {
-        var node = {x: x, y: y, width: width, height: height, auto_position: auto_position};
-        return this.grid.can_be_placed_with_respect_to_height(node);
+    GridStack.prototype.willItFit = function(x, y, width, height, autoPosition) {
+        var node = {x: x, y: y, width: width, height: height, autoPosition: autoPosition};
+        return this.grid.canBePlacedWithRespectToHeight(node);
     };
 
-    GridStack.prototype.remove_widget = function(el, detach_node) {
-        detach_node = typeof detach_node === 'undefined' ? true : detach_node;
+    GridStack.prototype.removeWidget = function(el, detachNode) {
+        detachNode = typeof detachNode === 'undefined' ? true : detachNode;
         el = $(el);
         var node = el.data('_gridstack_node');
-        this.grid.remove_node(node);
+        this.grid.removeNode(node);
         el.removeData('_gridstack_node');
-        this._update_container_height();
-        if (detach_node)
+        this._updateContainerHeight();
+        if (detachNode) {
             el.remove();
-        this._trigger_change_event(true);
+        }
+        this._triggerChangeEvent(true);
     };
 
-    GridStack.prototype.remove_all = function(detach_node) {
+    GridStack.prototype.removeAll = function(detachNode) {
         _.each(this.grid.nodes, _.bind(function(node) {
-            this.remove_widget(node.el, detach_node);
+            this.removeWidget(node.el, detachNode);
         }, this));
         this.grid.nodes = [];
-        this._update_container_height();
+        this._updateContainerHeight();
     };
 
     GridStack.prototype.destroy = function() {
-        $(window).off("resize", this.on_resize_handler);
+        $(window).off('resize', this.onResizeHandler);
         this.disable();
         this.container.remove();
-        Utils.remove_stylesheet(this._styles_id);
-        if (this.grid)
+        Utils.removeStylesheet(this._stylesId);
+        if (this.grid) {
             this.grid = null;
+        }
     };
 
     GridStack.prototype.resizable = function(el, val) {
@@ -836,15 +928,14 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node == null) {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
-            node.no_resize = !(val || false);
-            if (node.no_resize || self._is_one_column_mode()) {
+            node.noResize = !(val || false);
+            if (node.noResize || self._isOneColumnMode()) {
                 el.resizable('disable');
-            }
-            else {
+            } else {
                 el.resizable('enable');
             }
         });
@@ -857,16 +948,15 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node == null) {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
-            node.no_move = !(val || false);
-            if (node.no_move || self._is_one_column_mode()) {
+            node.noMove = !(val || false);
+            if (node.noMove || self._isOneColumnMode()) {
                 el.draggable('disable');
                 el.removeClass('ui-draggable-handle');
-            }
-            else {
+            } else {
                 el.draggable('enable');
                 el.addClass('ui-draggable-handle');
             }
@@ -875,14 +965,14 @@
     };
 
     GridStack.prototype.disable = function() {
-        this.movable(this.container.children('.' + this.opts.item_class), false);
-        this.resizable(this.container.children('.' + this.opts.item_class), false);
+        this.movable(this.container.children('.' + this.opts.itemClass), false);
+        this.resizable(this.container.children('.' + this.opts.itemClass), false);
         this.container.trigger('disable');
     };
 
     GridStack.prototype.enable = function() {
-        this.movable(this.container.children('.' + this.opts.item_class), true);
-        this.resizable(this.container.children('.' + this.opts.item_class), true);
+        this.movable(this.container.children('.' + this.opts.itemClass), true);
+        this.resizable(this.container.children('.' + this.opts.itemClass), true);
         this.container.trigger('enable');
     };
 
@@ -891,7 +981,7 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node == null) {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
@@ -901,188 +991,302 @@
         return this;
     };
 
-    GridStack.prototype.min_height = function (el, val) {
+    GridStack.prototype.maxHeight = function(el, val) {
         el = $(el);
-        el.each(function (index, el) {
+        el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
             if (typeof node == 'undefined' || node == null) {
                 return;
             }
 
-            if(!isNaN(val)){
-                node.min_height = (val || false);
+            if (!isNaN(val)) {
+                node.maxHeight = (val || false);
+                el.attr('data-gs-max-height', val);
+            }
+        });
+        return this;
+    };
+
+    GridStack.prototype.minHeight = function(el, val) {
+        el = $(el);
+        el.each(function(index, el) {
+            el = $(el);
+            var node = el.data('_gridstack_node');
+            if (typeof node == 'undefined' || node == null) {
+                return;
+            }
+
+            if (!isNaN(val)) {
+                node.minHeight = (val || false);
                 el.attr('data-gs-min-height', val);
             }
         });
         return this;
     };
 
-    GridStack.prototype.min_width = function (el, val) {
+    GridStack.prototype.maxWidth = function(el, val) {
         el = $(el);
-        el.each(function (index, el) {
+        el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
             if (typeof node == 'undefined' || node == null) {
                 return;
             }
 
-            if(!isNaN(val)){
-                node.min_width = (val || false);
+            if (!isNaN(val)) {
+                node.maxWidth = (val || false);
+                el.attr('data-gs-max-width', val);
+            }
+        });
+        return this;
+    };
+
+    GridStack.prototype.minWidth = function(el, val) {
+        el = $(el);
+        el.each(function(index, el) {
+            el = $(el);
+            var node = el.data('_gridstack_node');
+            if (typeof node == 'undefined' || node == null) {
+                return;
+            }
+
+            if (!isNaN(val)) {
+                node.minWidth = (val || false);
                 el.attr('data-gs-min-width', val);
             }
         });
         return this;
     };
 
-    GridStack.prototype._update_element = function(el, callback) {
+    GridStack.prototype._updateElement = function(el, callback) {
         el = $(el).first();
         var node = el.data('_gridstack_node');
-        if (typeof node == 'undefined' || node == null) {
+        if (typeof node == 'undefined' || node === null) {
             return;
         }
 
         var self = this;
 
-        self.grid.clean_nodes();
-        self.grid.begin_update(node);
+        self.grid.cleanNodes();
+        self.grid.beginUpdate(node);
 
         callback.call(this, el, node);
 
-        self._update_container_height();
-        self._trigger_change_event();
+        self._updateContainerHeight();
+        self._triggerChangeEvent();
 
-        self.grid.end_update();
+        self.grid.endUpdate();
     };
 
     GridStack.prototype.resize = function(el, width, height) {
-        this._update_element(el, function(el, node) {
-            width = (width != null && typeof width != 'undefined') ? width : node.width;
-            height = (height != null && typeof height != 'undefined') ? height : node.height;
+        this._updateElement(el, function(el, node) {
+            width = (width !== null && typeof width != 'undefined') ? width : node.width;
+            height = (height !== null && typeof height != 'undefined') ? height : node.height;
 
-            this.grid.move_node(node, node.x, node.y, width, height);
+            this.grid.moveNode(node, node.x, node.y, width, height);
         });
     };
 
     GridStack.prototype.move = function(el, x, y) {
-        this._update_element(el, function(el, node) {
-            x = (x != null && typeof x != 'undefined') ? x : node.x;
-            y = (y != null && typeof y != 'undefined') ? y : node.y;
+        this._updateElement(el, function(el, node) {
+            x = (x !== null && typeof x != 'undefined') ? x : node.x;
+            y = (y !== null && typeof y != 'undefined') ? y : node.y;
 
-            this.grid.move_node(node, x, y, node.width, node.height);
+            this.grid.moveNode(node, x, y, node.width, node.height);
         });
     };
 
     GridStack.prototype.update = function(el, x, y, width, height) {
-        this._update_element(el, function(el, node) {
-            x = (x != null && typeof x != 'undefined') ? x : node.x;
-            y = (y != null && typeof y != 'undefined') ? y : node.y;
-            width = (width != null && typeof width != 'undefined') ? width : node.width;
-            height = (height != null && typeof height != 'undefined') ? height : node.height;
+        this._updateElement(el, function(el, node) {
+            x = (x !== null && typeof x != 'undefined') ? x : node.x;
+            y = (y !== null && typeof y != 'undefined') ? y : node.y;
+            width = (width !== null && typeof width != 'undefined') ? width : node.width;
+            height = (height !== null && typeof height != 'undefined') ? height : node.height;
 
-            this.grid.move_node(node, x, y, width, height);
+            this.grid.moveNode(node, x, y, width, height);
         });
     };
 
     function parseHeight(val) {
         var height = val;
-        var height_unit = 'px';
+        var heightUnit = 'px';
         if (height && _.isString(height)) {
             var match = height.match(/^([0-9]+)(px|em|rem)?$/);
             if (!match) {
                 throw new Error('Invalid height');
             }
-            height_unit = match[2];
+            heightUnit = match[2];
             height = parseInt(match[1]);
         }
-        return {height: height, unit: height_unit};
+        return {height: height, unit: heightUnit};
     }
 
-    GridStack.prototype.vertical_margin = function (val, noUpdate) {
+    GridStack.prototype.verticalMargin = function(val, noUpdate) {
         if (typeof val == 'undefined') {
-            return this.opts.vertical_margin;
+            return this.opts.verticalMargin;
         }
 
         var heightData = parseHeight(val);
 
-        if (this.opts.vertical_margin_unit === heightData.unit && this.opts.height === heightData.height) {
+        if (this.opts.verticalMarginUnit === heightData.unit && this.opts.height === heightData.height) {
             return ;
         }
-        this.opts.vertical_margin_unit = heightData.unit;
-        this.opts.vertical_margin = heightData.height;
+        this.opts.verticalMarginUnit = heightData.unit;
+        this.opts.verticalMargin = heightData.height;
 
         if (!noUpdate) {
-            this._update_styles();
+            this._updateStyles();
         }
     };
 
-    GridStack.prototype.cell_height = function (val, noUpdate) {
+    GridStack.prototype.cellHeight = function(val, noUpdate) {
         if (typeof val == 'undefined') {
-            if (this.opts.cell_height) {
-                return this.opts.cell_height;
+            if (this.opts.cellHeight) {
+                return this.opts.cellHeight;
             } else {
-                var o = this.container.children('.' + this.opts.item_class).first();
+                var o = this.container.children('.' + this.opts.itemClass).first();
                 return Math.ceil(o.outerHeight() / o.attr('data-gs-height'));
             }
-        }
 
+        }
         var heightData = parseHeight(val);
 
-        if (this.opts.cell_height_unit === heightData.height_unit && this.opts.height === heightData.height) {
+        if (this.opts.cellHeightUnit === heightData.heightUnit && this.opts.height === heightData.height) {
             return ;
         }
-        this.opts.cell_height_unit = heightData.unit;
-        this.opts.cell_height = heightData.height;
+        this.opts.cellHeightUnit = heightData.unit;
+        this.opts.cellHeight = heightData.height;
 
         if (!noUpdate) {
-            this._update_styles();
+            this._updateStyles();
         }
+
     };
 
-    GridStack.prototype.cell_width = function() {
-        var o = this.container.children('.' + this.opts.item_class).first();
+    GridStack.prototype.cellWidth = function() {
+        var o = this.container.children('.' + this.opts.itemClass).first();
         return Math.ceil(o.outerWidth() / o.attr('data-gs-width'));
     };
 
-    GridStack.prototype.get_cell_from_pixel = function(position) {
+    GridStack.prototype.getCellFromPixel = function(position) {
         var containerPos = this.container.position();
         var relativeLeft = position.left - containerPos.left;
         var relativeTop = position.top - containerPos.top;
 
-        var column_width = Math.floor(this.container.width() / this.opts.width);
-        var row_height = Math.floor(this.container.height() / parseInt(this.container.attr('data-gs-current-height')));
+        var columnWidth = Math.floor(this.container.width() / this.opts.width);
+        var rowHeight = Math.floor(this.container.height() / parseInt(this.container.attr('data-gs-current-height')));
 
-        return {x: Math.floor(relativeLeft / column_width), y: Math.floor(relativeTop / row_height)};
+        return {x: Math.floor(relativeLeft / columnWidth), y: Math.floor(relativeTop / rowHeight)};
     };
 
-    GridStack.prototype.batch_update = function() {
-        this.grid.batch_update();
+    GridStack.prototype.batchUpdate = function() {
+        this.grid.batchUpdate();
     };
 
     GridStack.prototype.commit = function() {
         this.grid.commit();
-        this._update_container_height();
+        this._updateContainerHeight();
     };
 
-    GridStack.prototype.is_area_empty = function(x, y, width, height) {
-        return this.grid.is_area_empty(x, y, width, height);
+    GridStack.prototype.isAreaEmpty = function(x, y, width, height) {
+        return this.grid.isAreaEmpty(x, y, width, height);
     };
 
-    GridStack.prototype.set_static = function(static_value) {
-        this.opts.static_grid = (static_value === true);
-        this._set_static_class();
+    GridStack.prototype.setStatic = function(staticValue) {
+        this.opts.staticGrid = (staticValue === true);
+        this._setStaticClass();
     };
 
-    GridStack.prototype._set_static_class = function() {
-        var static_class_name = 'grid-stack-static';
+    GridStack.prototype._setStaticClass = function() {
+        var staticClassName = 'grid-stack-static';
 
-        if (this.opts.static_grid === true) {
-            this.container.addClass(static_class_name);
+        if (this.opts.staticGrid === true) {
+            this.container.addClass(staticClassName);
         } else {
-            this.container.removeClass(static_class_name);
+            this.container.removeClass(staticClassName);
         }
     };
 
+    // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+    GridStackEngine.prototype.batch_update = obsolete(GridStackEngine.prototype.batchUpdate);
+    GridStackEngine.prototype._fix_collisions = obsolete(GridStackEngine.prototype._fixCollisions,
+        '_fix_collisions', '_fixCollisions');
+    GridStackEngine.prototype.is_area_empty = obsolete(GridStackEngine.prototype.isAreaEmpty,
+        'is_area_empty', 'isAreaEmpty');
+    GridStackEngine.prototype._sort_nodes = obsolete(GridStackEngine.prototype._sortNodes,
+        '_sort_nodes', '_sortNodes');
+    GridStackEngine.prototype._pack_nodes = obsolete(GridStackEngine.prototype._packNodes,
+        '_pack_nodes', '_packNodes');
+    GridStackEngine.prototype._prepare_node = obsolete(GridStackEngine.prototype._prepareNode,
+        '_prepare_node', '_prepareNode');
+    GridStackEngine.prototype.clean_nodes = obsolete(GridStackEngine.prototype.cleanNodes,
+        'clean_nodes', 'cleanNodes');
+    GridStackEngine.prototype.get_dirty_nodes = obsolete(GridStackEngine.prototype.getDirtyNodes,
+        'get_dirty_nodes', 'getDirtyNodes');
+    GridStackEngine.prototype.add_node = obsolete(GridStackEngine.prototype.addNode,
+        'add_node', 'addNode, ');
+    GridStackEngine.prototype.remove_node = obsolete(GridStackEngine.prototype.removeNode,
+        'remove_node', 'removeNode');
+    GridStackEngine.prototype.can_move_node = obsolete(GridStackEngine.prototype.canMoveNode,
+        'can_move_node', 'canMoveNode');
+    GridStackEngine.prototype.move_node = obsolete(GridStackEngine.prototype.moveNode,
+        'move_node', 'moveNode');
+    GridStackEngine.prototype.get_grid_height = obsolete(GridStackEngine.prototype.getGridHeight,
+        'get_grid_height', 'getGridHeight');
+    GridStackEngine.prototype.begin_update = obsolete(GridStackEngine.prototype.beginUpdate,
+        'begin_update', 'beginUpdate');
+    GridStackEngine.prototype.end_update = obsolete(GridStackEngine.prototype.endUpdate,
+        'end_update', 'endUpdate');
+    GridStackEngine.prototype.can_be_placed_with_respect_to_height =
+        obsolete(GridStackEngine.prototype.canBePlacedWithRespectToHeight,
+        'can_be_placed_with_respect_to_height', 'canBePlacedWithRespectToHeight');
+    GridStack.prototype._trigger_change_event = obsolete(GridStack.prototype._triggerChangeEvent,
+        '_trigger_change_event', '_triggerChangeEvent');
+    GridStack.prototype._init_styles = obsolete(GridStack.prototype._initStyles,
+        '_init_styles', '_initStyles');
+    GridStack.prototype._update_styles = obsolete(GridStack.prototype._updateStyles,
+        '_update_styles', '_updateStyles');
+    GridStack.prototype._update_container_height = obsolete(GridStack.prototype._updateContainerHeight,
+        '_update_container_height', '_updateContainerHeight');
+    GridStack.prototype._is_one_column_mode = obsolete(GridStack.prototype._isOneColumnMode,
+        '_is_one_column_mode',' _isOneColumnMode');
+    GridStack.prototype._prepare_element = obsolete(GridStack.prototype._prepareElement,
+        '_prepare_element', '_prepareElement');
+    GridStack.prototype.set_animation = obsolete(GridStack.prototype.setAnimation,
+        'set_animation', 'setAnimation');
+    GridStack.prototype.add_widget = obsolete(GridStack.prototype.addWidget,
+        'add_widget', 'addWidget');
+    GridStack.prototype.make_widget = obsolete(GridStack.prototype.makeWidget,
+        'make_widget', 'makeWidget');
+    GridStack.prototype.will_it_fit = obsolete(GridStack.prototype.willItFit,
+        'will_it_fit', 'willItFit');
+    GridStack.prototype.remove_widget = obsolete(GridStack.prototype.removeWidget,
+        'remove_widget', 'removeWidget');
+    GridStack.prototype.remove_all = obsolete(GridStack.prototype.removeAll,
+        'remove_all', 'removeAll');
+    GridStack.prototype.min_height = obsolete(GridStack.prototype.minHeight,
+        'min_height', 'minHeight');
+    GridStack.prototype.min_width = obsolete(GridStack.prototype.minWidth,
+        'min_width', 'minWidth');
+    GridStack.prototype._update_element = obsolete(GridStack.prototype._updateElement,
+        '_update_element', '_updateElement');
+    GridStack.prototype.cell_height = obsolete(GridStack.prototype.cellHeight,
+        'cell_height', 'cellHeight');
+    GridStack.prototype.cell_width = obsolete(GridStack.prototype.cellWidth,
+        'cell_width', 'cellWidth');
+    GridStack.prototype.get_cell_from_pixel = obsolete(GridStack.prototype.getCellFromPixel,
+        'get_cell_from_pixel', 'getCellFromPixel');
+    GridStack.prototype.batch_update = obsolete(GridStack.prototype.batchUpdate,
+        'batch_update', 'batchUpdate');
+    GridStack.prototype.is_area_empty = obsolete(GridStack.prototype.isAreaEmpty,
+        'is_area_empty', 'isAreaEmpty');
+    GridStack.prototype.set_static = obsolete(GridStack.prototype.setStatic,
+        'set_static', 'setStatic');
+    GridStack.prototype._set_static_class = obsolete(GridStack.prototype._setStaticClass,
+        '_set_static_class', '_setStaticClass');
+    // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+
     scope.GridStackUI = GridStack;
 
     scope.GridStackUI.Utils = Utils;
diff --git a/dist/gridstack.min.js b/dist/gridstack.min.js
index df10912..7c982de 100644
--- a/dist/gridstack.min.js
+++ b/dist/gridstack.min.js
@@ -5,5 +5,12 @@
  * gridstack.js may be freely distributed under the MIT license.
  * @preserve
 */
-!function(a){if("function"==typeof define&&define.amd)define(["jquery","lodash","jquery-ui/core","jquery-ui/widget","jquery-ui/mouse","jquery-ui/draggable","jquery-ui/resizable"],a);else if("undefined"!=typeof exports){try{jQuery=require("jquery")}catch(b){}try{_=require("lodash")}catch(b){}a(jQuery,_)}else a(jQuery,_)}(function(a,b){function c(a){var c=a,d="px";if(c&&b.isString(c)){var e=c.match(/^([0-9]+)(px|em|rem)?$/);if(!e)throw new Error("Invalid height");d=e[2],c=parseInt(e[1])}return{height:c,unit:d}}var d=window,e={is_intercepted:function(a,b){return!(a.x+a.width<=b.x||b.x+b.width<=a.x||a.y+a.height<=b.y||b.y+b.height<=a.y)},sort:function(a,c,d){return d=d||b.chain(a).map(function(a){return a.x+a.width}).max().value(),c=-1!=c?1:-1,b.sortBy(a,function(a){return c*(a.x+a.y*d)})},create_stylesheet:function(a){var b=document.createElement("style");return b.setAttribute("type","text/css"),b.setAttribute("data-gs-id",a),b.styleSheet?b.styleSheet.cssText="":b.appendChild(document.createTextNode("")),document.getElementsByTagName("head")[0].appendChild(b),b.sheet},remove_stylesheet:function(b){a("STYLE[data-gs-id="+b+"]").remove()},insert_css_rule:function(a,b,c,d){"function"==typeof a.insertRule?a.insertRule(b+"{"+c+"}",d):"function"==typeof a.addRule&&a.addRule(b,c,d)},toBool:function(a){return"boolean"==typeof a?a:"string"==typeof a?(a=a.toLowerCase(),!(""==a||"no"==a||"false"==a||"0"==a)):Boolean(a)}},f=0,g=function(a,b,c,d,e){this.width=a,this["float"]=c||!1,this.height=d||0,this.nodes=e||[],this.onchange=b||function(){},this._update_counter=0,this._float=this["float"]};g.prototype.batch_update=function(){this._update_counter=1,this["float"]=!0},g.prototype.commit=function(){this._update_counter=0,0==this._update_counter&&(this["float"]=this._float,this._pack_nodes(),this._notify())},g.prototype._fix_collisions=function(a){this._sort_nodes(-1);var c=a,d=Boolean(b.find(this.nodes,function(a){return a.locked}));for(this["float"]||d||(c={x:0,y:a.y,width:this.width,height:a.height});;){var f=b.find(this.nodes,b.bind(function(b){return b!=a&&e.is_intercepted(b,c)},this));if("undefined"==typeof f)return;this.move_node(f,f.x,a.y+a.height,f.width,f.height,!0)}},g.prototype.is_area_empty=function(a,c,d,f){var g={x:a||0,y:c||0,width:d||1,height:f||1},h=b.find(this.nodes,b.bind(function(a){return e.is_intercepted(a,g)},this));return null==h},g.prototype._sort_nodes=function(a){this.nodes=e.sort(this.nodes,a,this.width)},g.prototype._pack_nodes=function(){this._sort_nodes(),this["float"]?b.each(this.nodes,b.bind(function(a,c){if(!a._updating&&"undefined"!=typeof a._orig_y&&a.y!=a._orig_y)for(var d=a.y;d>=a._orig_y;){var f=b.chain(this.nodes).find(function(b){return a!=b&&e.is_intercepted({x:a.x,y:d,width:a.width,height:a.height},b)}).value();f||(a._dirty=!0,a.y=d),--d}},this)):b.each(this.nodes,b.bind(function(a,c){if(!a.locked)for(;a.y>0;){var d=a.y-1,f=0==c;if(c>0){var g=b.chain(this.nodes).take(c).find(function(b){return e.is_intercepted({x:a.x,y:d,width:a.width,height:a.height},b)}).value();f="undefined"==typeof g}if(!f)break;a._dirty=a.y!=d,a.y=d}},this))},g.prototype._prepare_node=function(a,c){return a=b.defaults(a||{},{width:1,height:1,x:0,y:0}),a.x=parseInt(""+a.x),a.y=parseInt(""+a.y),a.width=parseInt(""+a.width),a.height=parseInt(""+a.height),a.auto_position=a.auto_position||!1,a.no_resize=a.no_resize||!1,a.no_move=a.no_move||!1,a.width>this.width?a.width=this.width:a.width<1&&(a.width=1),a.height<1&&(a.height=1),a.x<0&&(a.x=0),a.x+a.width>this.width&&(c?a.width=this.width-a.x:a.x=this.width-a.width),a.y<0&&(a.y=0),a},g.prototype._notify=function(){if(!this._update_counter){var a=Array.prototype.slice.call(arguments,1).concat(this.get_dirty_nodes());a=a.concat(this.get_dirty_nodes()),this.onchange(a)}},g.prototype.clean_nodes=function(){b.each(this.nodes,function(a){a._dirty=!1})},g.prototype.get_dirty_nodes=function(){return b.filter(this.nodes,function(a){return a._dirty})},g.prototype.add_node=function(a){if(a=this._prepare_node(a),"undefined"!=typeof a.max_width&&(a.width=Math.min(a.width,a.max_width)),"undefined"!=typeof a.max_height&&(a.height=Math.min(a.height,a.max_height)),"undefined"!=typeof a.min_width&&(a.width=Math.max(a.width,a.min_width)),"undefined"!=typeof a.min_height&&(a.height=Math.max(a.height,a.min_height)),a._id=++f,a._dirty=!0,a.auto_position){this._sort_nodes();for(var c=0;;++c){var d=c%this.width,g=Math.floor(c/this.width);if(!(d+a.width>this.width||b.find(this.nodes,function(b){return e.is_intercepted({x:d,y:g,width:a.width,height:a.height},b)}))){a.x=d,a.y=g;break}}}return this.nodes.push(a),this._fix_collisions(a),this._pack_nodes(),this._notify(),a},g.prototype.remove_node=function(a){a._id=null,this.nodes=b.without(this.nodes,a),this._pack_nodes(),this._notify(a)},g.prototype.can_move_node=function(c,d,e,f,h){var i=Boolean(b.find(this.nodes,function(a){return a.locked}));if(!this.height&&!i)return!0;var j,k=new g(this.width,null,this["float"],0,b.map(this.nodes,function(b){return b==c?j=a.extend({},b):a.extend({},b)}));k.move_node(j,d,e,f,h);var l=!0;return i&&(l&=!Boolean(b.find(k.nodes,function(a){return a!=j&&Boolean(a.locked)&&Boolean(a._dirty)}))),this.height&&(l&=k.get_grid_height()<=this.height),l},g.prototype.can_be_placed_with_respect_to_height=function(c){if(!this.height)return!0;var d=new g(this.width,null,this["float"],0,b.map(this.nodes,function(b){return a.extend({},b)}));return d.add_node(c),d.get_grid_height()<=this.height},g.prototype.move_node=function(a,b,c,d,e,f){if("number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),"undefined"!=typeof a.max_width&&(d=Math.min(d,a.max_width)),"undefined"!=typeof a.max_height&&(e=Math.min(e,a.max_height)),"undefined"!=typeof a.min_width&&(d=Math.max(d,a.min_width)),"undefined"!=typeof a.min_height&&(e=Math.max(e,a.min_height)),a.x==b&&a.y==c&&a.width==d&&a.height==e)return a;var g=a.width!=d;return a._dirty=!0,a.x=b,a.y=c,a.width=d,a.height=e,a=this._prepare_node(a,g),this._fix_collisions(a),f||(this._pack_nodes(),this._notify()),a},g.prototype.get_grid_height=function(){return b.reduce(this.nodes,function(a,b){return Math.max(a,b.y+b.height)},0)},g.prototype.begin_update=function(a){b.each(this.nodes,function(a){a._orig_y=a.y}),a._updating=!0},g.prototype.end_update=function(){b.each(this.nodes,function(a){a._orig_y=a.y});var a=b.find(this.nodes,function(a){return a._updating});a&&(a._updating=!1)};var h=function(c,d){var e,f=this;d=d||{},this.container=a(c),d.item_class=d.item_class||"grid-stack-item";var h=this.container.closest("."+d.item_class).size()>0;if(this.opts=b.defaults(d||{},{width:parseInt(this.container.attr("data-gs-width"))||12,height:parseInt(this.container.attr("data-gs-height"))||0,item_class:"grid-stack-item",placeholder_class:"grid-stack-placeholder",placeholder_text:"",handle:".grid-stack-item-content",handle_class:null,cell_height:60,vertical_margin:20,auto:!0,min_width:768,"float":!1,static_grid:!1,_class:"grid-stack-instance-"+(1e4*Math.random()).toFixed(0),animate:Boolean(this.container.attr("data-gs-animate"))||!1,always_show_resize_handle:d.always_show_resize_handle||!1,resizable:b.defaults(d.resizable||{},{autoHide:!d.always_show_resize_handle,handles:"se"}),draggable:b.defaults(d.draggable||{},{handle:(d.handle_class?"."+d.handle_class:d.handle?d.handle:"")||".grid-stack-item-content",scroll:!1,appendTo:"body"})}),this.opts.is_nested=h,this.cell_height(this.opts.cell_height,!0),this.vertical_margin(this.opts.vertical_margin,!0),this.container.addClass(this.opts._class),this._set_static_class(),h&&this.container.addClass("grid-stack-nested"),this._init_styles(),this.grid=new g(this.opts.width,function(a){var c=0;b.each(a,function(a){null==a._id?a.el.remove():(a.el.attr("data-gs-x",a.x).attr("data-gs-y",a.y).attr("data-gs-width",a.width).attr("data-gs-height",a.height),c=Math.max(c,a.y+a.height))}),f._update_styles(c+10)},this.opts["float"],this.opts.height),this.opts.auto){var i=[],j=this;this.container.children("."+this.opts.item_class+":not(."+this.opts.placeholder_class+")").each(function(b,c){c=a(c),i.push({el:c,i:parseInt(c.attr("data-gs-x"))+parseInt(c.attr("data-gs-y"))*j.opts.width})}),b.chain(i).sortBy(function(a){return a.i}).each(function(a){f._prepare_element(a.el)}).value()}this.set_animation(this.opts.animate),this.placeholder=a('<div class="'+this.opts.placeholder_class+" "+this.opts.item_class+'"><div class="placeholder-content">'+this.opts.placeholder_text+"</div></div>").hide(),this._update_container_height(),this.on_resize_handler=function(){if(f._is_one_column_mode()){if(e)return;e=!0,f.grid._sort_nodes(),b.each(f.grid.nodes,function(a){f.container.append(a.el),f.opts.static_grid||(a.no_move||a.el.draggable("disable"),a.no_resize||a.el.resizable("disable"))})}else{if(!e)return;if(e=!1,f.opts.static_grid)return;b.each(f.grid.nodes,function(a){a.no_move||a.el.draggable("enable"),a.no_resize||a.el.resizable("enable")})}},a(window).resize(this.on_resize_handler),this.on_resize_handler()};return h.prototype._trigger_change_event=function(a){var b=this.grid.get_dirty_nodes(),c=!1,d=[];b&&b.length&&(d.push(b),c=!0),(c||a===!0)&&this.container.trigger("change",d)},h.prototype._init_styles=function(){this.opts.cell_height&&(this._styles_id&&a('[data-gs-id="'+this._styles_id+'"]').remove(),this._styles_id="gridstack-style-"+(1e5*Math.random()).toFixed(),this._styles=e.create_stylesheet(this._styles_id),null!=this._styles&&(this._styles._max=0))},h.prototype._update_styles=function(a){if(null!=this._styles){var b,c="."+this.opts._class+" ."+this.opts.item_class,d=this;if("undefined"==typeof a&&(a=this._styles._max,this._init_styles(),this._update_container_height()),this.opts.cell_height&&!(0!==this._styles._max&&a<=this._styles._max)&&(b=this.opts.vertical_margin&&this.opts.cell_height_unit!==this.opts.vertical_margin_unit?function(a,b){return a&&b?"calc("+(d.opts.cell_height*a+d.opts.cell_height_unit)+" + "+(d.opts.vertical_margin*b+d.opts.vertical_margin_unit)+")":d.opts.cell_height*a+d.opts.vertical_margin*b+d.opts.cell_height_unit}:function(a,b){return d.opts.cell_height*a+d.opts.vertical_margin*b+d.opts.cell_height_unit},0==this._styles._max&&e.insert_css_rule(this._styles,c,"min-height: "+b(1,0)+";",0),a>this._styles._max)){for(var f=this._styles._max;a>f;++f)e.insert_css_rule(this._styles,c+'[data-gs-height="'+(f+1)+'"]',"height: "+b(f+1,f)+";",f),e.insert_css_rule(this._styles,c+'[data-gs-min-height="'+(f+1)+'"]',"min-height: "+b(f+1,f)+";",f),e.insert_css_rule(this._styles,c+'[data-gs-max-height="'+(f+1)+'"]',"max-height: "+b(f+1,f)+";",f),e.insert_css_rule(this._styles,c+'[data-gs-y="'+f+'"]',"top: "+b(f,f)+";",f);this._styles._max=a}}},h.prototype._update_container_height=function(){if(!this.grid._update_counter){var a=this.grid.get_grid_height();this.container.attr("data-gs-current-height",a),this.opts.cell_height&&(this.opts.vertical_margin?this.opts.cell_height_unit===this.opts.vertical_margin_unit?this.container.css("height",a*(this.opts.cell_height+this.opts.vertical_margin)-this.opts.vertical_margin+this.opts.cell_height_unit):this.container.css("height","calc("+(a*this.opts.cell_height+this.opts.cell_height_unit)+" + "+(a*(this.opts.vertical_margin-1)+this.opts.vertical_margin_unit)+")"):this.container.css("height",a*this.opts.cell_height+this.opts.cell_height_unit))}},h.prototype._is_one_column_mode=function(){return(window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth)<=this.opts.min_width},h.prototype._prepare_element=function(c){var d=this;c=a(c),c.addClass(this.opts.item_class);var f=d.grid.add_node({x:c.attr("data-gs-x"),y:c.attr("data-gs-y"),width:c.attr("data-gs-width"),height:c.attr("data-gs-height"),max_width:c.attr("data-gs-max-width"),min_width:c.attr("data-gs-min-width"),max_height:c.attr("data-gs-max-height"),min_height:c.attr("data-gs-min-height"),auto_position:e.toBool(c.attr("data-gs-auto-position")),no_resize:e.toBool(c.attr("data-gs-no-resize")),no_move:e.toBool(c.attr("data-gs-no-move")),locked:e.toBool(c.attr("data-gs-locked")),el:c});if(c.data("_gridstack_node",f),!d.opts.static_grid){var g,h,i=function(a,b){var c,e,i=Math.round(b.position.left/g),j=Math.floor((b.position.top+h/2)/h);"drag"!=a.type&&(c=Math.round(b.size.width/g),e=Math.round(b.size.height/h)),d.grid.can_move_node(f,i,j,c,e)&&(d.grid.move_node(f,i,j,c,e),d._update_container_height())},j=function(b,e){d.container.append(d.placeholder);var i=a(this);d.grid.clean_nodes(),d.grid.begin_update(f),g=Math.ceil(i.outerWidth()/i.attr("data-gs-width"));var j=Math.ceil(i.outerHeight()/i.attr("data-gs-height"));h=d.container.height()/parseInt(d.container.attr("data-gs-current-height")),d.placeholder.attr("data-gs-x",i.attr("data-gs-x")).attr("data-gs-y",i.attr("data-gs-y")).attr("data-gs-width",i.attr("data-gs-width")).attr("data-gs-height",i.attr("data-gs-height")).show(),f.el=d.placeholder,c.resizable("option","minWidth",g*(f.min_width||1)),c.resizable("option","minHeight",j*(f.min_height||1)),"resizestart"==b.type&&i.find(".grid-stack-item").trigger("resizestart")},k=function(b,c){d.placeholder.detach();var e=a(this);f.el=e,d.placeholder.hide(),e.attr("data-gs-x",f.x).attr("data-gs-y",f.y).attr("data-gs-width",f.width).attr("data-gs-height",f.height).removeAttr("style"),d._update_container_height(),d._trigger_change_event(),d.grid.end_update();var g=e.find(".grid-stack");g.length&&"resizestop"==b.type&&(g.each(function(b,c){a(c).data("gridstack").on_resize_handler()}),e.find(".grid-stack-item").trigger("resizestop"))};c.draggable(b.extend(this.opts.draggable,{containment:this.opts.is_nested?this.container.parent():null,start:j,stop:k,drag:i})).resizable(b.extend(this.opts.resizable,{start:j,stop:k,resize:i})),(f.no_move||this._is_one_column_mode())&&c.draggable("disable"),(f.no_resize||this._is_one_column_mode())&&c.resizable("disable"),c.attr("data-gs-locked",f.locked?"yes":null)}},h.prototype.set_animation=function(a){a?this.container.addClass("grid-stack-animate"):this.container.removeClass("grid-stack-animate")},h.prototype.add_widget=function(b,c,d,e,f,g){return b=a(b),"undefined"!=typeof c&&b.attr("data-gs-x",c),"undefined"!=typeof d&&b.attr("data-gs-y",d),"undefined"!=typeof e&&b.attr("data-gs-width",e),"undefined"!=typeof f&&b.attr("data-gs-height",f),"undefined"!=typeof g&&b.attr("data-gs-auto-position",g?"yes":null),this.container.append(b),this._prepare_element(b),this._update_container_height(),this._trigger_change_event(!0),b},h.prototype.make_widget=function(b){return b=a(b),this._prepare_element(b),this._update_container_height(),this._trigger_change_event(!0),b},h.prototype.will_it_fit=function(a,b,c,d,e){var f={x:a,y:b,width:c,height:d,auto_position:e};return this.grid.can_be_placed_with_respect_to_height(f)},h.prototype.remove_widget=function(b,c){c="undefined"==typeof c?!0:c,b=a(b);var d=b.data("_gridstack_node");this.grid.remove_node(d),b.removeData("_gridstack_node"),this._update_container_height(),c&&b.remove(),this._trigger_change_event(!0)},h.prototype.remove_all=function(a){b.each(this.grid.nodes,b.bind(function(b){this.remove_widget(b.el,a)},this)),this.grid.nodes=[],this._update_container_height()},h.prototype.destroy=function(){a(window).off("resize",this.on_resize_handler),this.disable(),this.container.remove(),e.remove_stylesheet(this._styles_id),this.grid&&(this.grid=null)},h.prototype.resizable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");"undefined"!=typeof f&&null!=f&&(f.no_resize=!c,f.no_resize||d._is_one_column_mode()?e.resizable("disable"):e.resizable("enable"))}),this},h.prototype.movable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");"undefined"!=typeof f&&null!=f&&(f.no_move=!c,f.no_move||d._is_one_column_mode()?(e.draggable("disable"),e.removeClass("ui-draggable-handle")):(e.draggable("enable"),e.addClass("ui-draggable-handle")))}),this},h.prototype.disable=function(){this.movable(this.container.children("."+this.opts.item_class),!1),this.resizable(this.container.children("."+this.opts.item_class),!1),this.container.trigger("disable")},h.prototype.enable=function(){this.movable(this.container.children("."+this.opts.item_class),!0),this.resizable(this.container.children("."+this.opts.item_class),!0),this.container.trigger("enable")},h.prototype.locked=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(e.locked=c||!1,d.attr("data-gs-locked",e.locked?"yes":null))}),this},h.prototype.min_height=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(isNaN(c)||(e.min_height=c||!1,d.attr("data-gs-min-height",c)))}),this},h.prototype.min_width=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(isNaN(c)||(e.min_width=c||!1,d.attr("data-gs-min-width",c)))}),this},h.prototype._update_element=function(b,c){b=a(b).first();var d=b.data("_gridstack_node");if("undefined"!=typeof d&&null!=d){var e=this;e.grid.clean_nodes(),e.grid.begin_update(d),c.call(this,b,d),e._update_container_height(),e._trigger_change_event(),e.grid.end_update()}},h.prototype.resize=function(a,b,c){this._update_element(a,function(a,d){b=null!=b&&"undefined"!=typeof b?b:d.width,c=null!=c&&"undefined"!=typeof c?c:d.height,this.grid.move_node(d,d.x,d.y,b,c)})},h.prototype.move=function(a,b,c){this._update_element(a,function(a,d){b=null!=b&&"undefined"!=typeof b?b:d.x,c=null!=c&&"undefined"!=typeof c?c:d.y,this.grid.move_node(d,b,c,d.width,d.height)})},h.prototype.update=function(a,b,c,d,e){this._update_element(a,function(a,f){b=null!=b&&"undefined"!=typeof b?b:f.x,c=null!=c&&"undefined"!=typeof c?c:f.y,d=null!=d&&"undefined"!=typeof d?d:f.width,e=null!=e&&"undefined"!=typeof e?e:f.height,this.grid.move_node(f,b,c,d,e)})},h.prototype.vertical_margin=function(a,b){if("undefined"==typeof a)return this.opts.vertical_margin;var d=c(a);(this.opts.vertical_margin_unit!==d.unit||this.opts.height!==d.height)&&(this.opts.vertical_margin_unit=d.unit,this.opts.vertical_margin=d.height,b||this._update_styles())},h.prototype.cell_height=function(a,b){if("undefined"==typeof a){if(this.opts.cell_height)return this.opts.cell_height;var d=this.container.children("."+this.opts.item_class).first();return Math.ceil(d.outerHeight()/d.attr("data-gs-height"))}var e=c(a);(this.opts.cell_height_unit!==e.height_unit||this.opts.height!==e.height)&&(this.opts.cell_height_unit=e.unit,this.opts.cell_height=e.height,b||this._update_styles())},h.prototype.cell_width=function(){var a=this.container.children("."+this.opts.item_class).first();return Math.ceil(a.outerWidth()/a.attr("data-gs-width"))},h.prototype.get_cell_from_pixel=function(a){var b=this.container.position(),c=a.left-b.left,d=a.top-b.top,e=Math.floor(this.container.width()/this.opts.width),f=Math.floor(this.container.height()/parseInt(this.container.attr("data-gs-current-height")));return{x:Math.floor(c/e),y:Math.floor(d/f)}},h.prototype.batch_update=function(){this.grid.batch_update()},h.prototype.commit=function(){this.grid.commit(),this._update_container_height()},h.prototype.is_area_empty=function(a,b,c,d){return this.grid.is_area_empty(a,b,c,d)},h.prototype.set_static=function(a){this.opts.static_grid=a===!0,this._set_static_class()},h.prototype._set_static_class=function(){var a="grid-stack-static";this.opts.static_grid===!0?this.container.addClass(a):this.container.removeClass(a)},d.GridStackUI=h,d.GridStackUI.Utils=e,a.fn.gridstack=function(b){return this.each(function(){var c=a(this);c.data("gridstack")||c.data("gridstack",new h(this,b))})},d.GridStackUI});
+!function(a){if("function"==typeof define&&define.amd)define(["jquery","lodash","jquery-ui/core","jquery-ui/widget","jquery-ui/mouse","jquery-ui/draggable","jquery-ui/resizable"],a);else if("undefined"!=typeof exports){try{jQuery=require("jquery")}catch(b){}try{_=require("lodash")}catch(b){}a(jQuery,_)}else a(jQuery,_)}(function(a,b){function c(a){var c=a,d="px";if(c&&b.isString(c)){var e=c.match(/^([0-9]+)(px|em|rem)?$/);if(!e)throw new Error("Invalid height");d=e[2],c=parseInt(e[1])}return{height:c,unit:d}}var d=window,e=function(a,b,c){var d=function(){return console.warn("gridstack.js: Function `"+b+"` is deprecated as of v0.2.5 and has been replaced with `"+c+"`. It will be **completely** removed in v1.0."),a.apply(this,arguments)};return d.prototype=a.prototype,d},f=function(a,b){console.warn("gridstack.js: Option `"+a+"` is deprecated as of v0.2.5 and has been replaced with `"+b+"`. It will be **completely** removed in v1.0.")},g={isIntercepted:function(a,b){return!(a.x+a.width<=b.x||b.x+b.width<=a.x||a.y+a.height<=b.y||b.y+b.height<=a.y)},sort:function(a,c,d){return d=d||b.chain(a).map(function(a){return a.x+a.width}).max().value(),c=-1!=c?1:-1,b.sortBy(a,function(a){return c*(a.x+a.y*d)})},createStylesheet:function(a){var b=document.createElement("style");return b.setAttribute("type","text/css"),b.setAttribute("data-gs-id",a),b.styleSheet?b.styleSheet.cssText="":b.appendChild(document.createTextNode("")),document.getElementsByTagName("head")[0].appendChild(b),b.sheet},removeStylesheet:function(b){a("STYLE[data-gs-id="+b+"]").remove()},insertCSSRule:function(a,b,c,d){"function"==typeof a.insertRule?a.insertRule(b+"{"+c+"}",d):"function"==typeof a.addRule&&a.addRule(b,c,d)},toBool:function(a){return"boolean"==typeof a?a:"string"==typeof a?(a=a.toLowerCase(),!(""===a||"no"==a||"false"==a||"0"==a)):Boolean(a)},_collisionNodeCheck:function(a){return a!=this.node&&g.isIntercepted(a,this.nn)},_didCollideFloat:function(a){return this.n!=a&&g.isIntercepted({x:this.n.x,y:this.newY,width:this.n.width,height:this.n.height},a)},_didCollide:function(a){return g.isIntercepted({x:this.n.x,y:this.newY,width:this.n.width,height:this.n.height},a)},_isAddNodeIntercepted:function(a){return g.isIntercepted({x:this.x,y:this.y,width:this.node.width,height:this.node.height},a)}};
+// jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+g.is_intercepted=e(g.isIntercepted,"is_intercepted","isIntercepted"),g.create_stylesheet=e(g.createStylesheet,"create_stylesheet","createStylesheet"),g.remove_stylesheet=e(g.removeStylesheet,"remove_stylesheet","removeStylesheet"),g.insert_css_rule=e(g.insertCSSRule,"insert_css_rule","insertCSSRule");
+// jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+var h=0,i=function(a,b,c,d,e){this.width=a,this["float"]=c||!1,this.height=d||0,this.nodes=e||[],this.onchange=b||function(){},this._updateCounter=0,this._float=this["float"]};i.prototype.batchUpdate=function(){this._updateCounter=1,this["float"]=!0},i.prototype.commit=function(){this._updateCounter=0,0===this._updateCounter&&(this["float"]=this._float,this._packNodes(),this._notify())},i.prototype._fixCollisions=function(a){this._sortNodes(-1);var c=a,d=Boolean(b.find(this.nodes,function(a){return a.locked}));for(this["float"]||d||(c={x:0,y:a.y,width:this.width,height:a.height});;){var e=b.find(this.nodes,b.bind(g._collisionNodeCheck,{node:a,nn:c}));if("undefined"==typeof e)return;this.moveNode(e,e.x,a.y+a.height,e.width,e.height,!0)}},i.prototype.isAreaEmpty=function(a,c,d,e){var f={x:a||0,y:c||0,width:d||1,height:e||1},h=b.find(this.nodes,b.bind(function(a){return g.isIntercepted(a,f)},this));return null===h},i.prototype._sortNodes=function(a){this.nodes=g.sort(this.nodes,a,this.width)},i.prototype._packNodes=function(){this._sortNodes(),this["float"]?b.each(this.nodes,b.bind(function(a,c){if(!a._updating&&"undefined"!=typeof a._origY&&a.y!=a._origY)for(var d=a.y;d>=a._origY;){var e=b.chain(this.nodes).find(b.bind(g._didCollide,{n:a,newY:d})).value();e||(a._dirty=!0,a.y=d),--d}},this)):b.each(this.nodes,b.bind(function(a,c){if(!a.locked)for(;a.y>0;){var d=a.y-1,e=0===c;if(c>0){var f=b.chain(this.nodes).take(c).find(b.bind(g._didCollide,{n:a,newY:d})).value();e="undefined"==typeof f}if(!e)break;a._dirty=a.y!=d,a.y=d}},this))},i.prototype._prepareNode=function(a,c){return a=b.defaults(a||{},{width:1,height:1,x:0,y:0}),a.x=parseInt(""+a.x),a.y=parseInt(""+a.y),a.width=parseInt(""+a.width),a.height=parseInt(""+a.height),a.autoPosition=a.autoPosition||!1,a.noResize=a.noResize||!1,a.noMove=a.noMove||!1,a.width>this.width?a.width=this.width:a.width<1&&(a.width=1),a.height<1&&(a.height=1),a.x<0&&(a.x=0),a.x+a.width>this.width&&(c?a.width=this.width-a.x:a.x=this.width-a.width),a.y<0&&(a.y=0),a},i.prototype._notify=function(){if(!this._updateCounter){var a=Array.prototype.slice.call(arguments,1).concat(this.getDirtyNodes());a=a.concat(this.getDirtyNodes()),this.onchange(a)}},i.prototype.cleanNodes=function(){b.each(this.nodes,function(a){a._dirty=!1})},i.prototype.getDirtyNodes=function(){return b.filter(this.nodes,function(a){return a._dirty})},i.prototype.addNode=function(a){if(a=this._prepareNode(a),"undefined"!=typeof a.maxWidth&&(a.width=Math.min(a.width,a.maxWidth)),"undefined"!=typeof a.maxHeight&&(a.height=Math.min(a.height,a.maxHeight)),"undefined"!=typeof a.minWidth&&(a.width=Math.max(a.width,a.minWidth)),"undefined"!=typeof a.minHeight&&(a.height=Math.max(a.height,a.minHeight)),a._id=++h,a._dirty=!0,a.autoPosition){this._sortNodes();for(var c=0;;++c){var d=c%this.width,e=Math.floor(c/this.width);if(!(d+a.width>this.width||b.find(this.nodes,b.bind(g._isAddNodeIntercepted,{x:d,y:e,node:a})))){a.x=d,a.y=e;break}}}return this.nodes.push(a),this._fixCollisions(a),this._packNodes(),this._notify(),a},i.prototype.removeNode=function(a){a._id=null,this.nodes=b.without(this.nodes,a),this._packNodes(),this._notify(a)},i.prototype.canMoveNode=function(c,d,e,f,g){var h=Boolean(b.find(this.nodes,function(a){return a.locked}));if(!this.height&&!h)return!0;var j,k=new i(this.width,null,this["float"],0,b.map(this.nodes,function(b){return b==c?j=a.extend({},b):a.extend({},b)}));k.moveNode(j,d,e,f,g);var l=!0;return h&&(l&=!Boolean(b.find(k.nodes,function(a){return a!=j&&Boolean(a.locked)&&Boolean(a._dirty)}))),this.height&&(l&=k.getGridHeight()<=this.height),l},i.prototype.canBePlacedWithRespectToHeight=function(c){if(!this.height)return!0;var d=new i(this.width,null,this["float"],0,b.map(this.nodes,function(b){return a.extend({},b)}));return d.addNode(c),d.getGridHeight()<=this.height},i.prototype.moveNode=function(a,b,c,d,e,f){if("number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),"undefined"!=typeof a.maxWidth&&(d=Math.min(d,a.maxWidth)),"undefined"!=typeof a.maxHeight&&(e=Math.min(e,a.maxHeight)),"undefined"!=typeof a.minWidth&&(d=Math.max(d,a.minWidth)),"undefined"!=typeof a.minHeight&&(e=Math.max(e,a.minHeight)),a.x==b&&a.y==c&&a.width==d&&a.height==e)return a;var g=a.width!=d;return a._dirty=!0,a.x=b,a.y=c,a.width=d,a.height=e,a=this._prepareNode(a,g),this._fixCollisions(a),f||(this._packNodes(),this._notify()),a},i.prototype.getGridHeight=function(){return b.reduce(this.nodes,function(a,b){return Math.max(a,b.y+b.height)},0)},i.prototype.beginUpdate=function(a){b.each(this.nodes,function(a){a._origY=a.y}),a._updating=!0},i.prototype.endUpdate=function(){b.each(this.nodes,function(a){a._origY=a.y});var a=b.find(this.nodes,function(a){return a._updating});a&&(a._updating=!1)};var j=function(c,d){var e,g=this;d=d||{},this.container=a(c),"undefined"!=typeof d.handle_class&&(d.handleClass=d.handle_class,f("handle_class","handleClass")),"undefined"!=typeof d.item_class&&(d.itemClass=d.item_class,f("item_class","itemClass")),"undefined"!=typeof d.placeholder_class&&(d.placeholderClass=d.placeholder_class,f("placeholder_class","placeholderClass")),"undefined"!=typeof d.placeholder_text&&(d.placeholderText=d.placeholder_text,f("placeholder_text","placeholderText")),"undefined"!=typeof d.item_class&&(d.itemClass=d.item_class,f("item_class","itemClass")),"undefined"!=typeof d.cell_height&&(d.cellHeight=d.cell_height,f("cell_height","cellHeight")),"undefined"!=typeof d.vertical_margin&&(d.verticalMargin=d.vertical_margin,f("vertical_margin","verticalMargin")),"undefined"!=typeof d.min_width&&(d.minWidth=d.min_width,f("min_width","minWidth")),"undefined"!=typeof d.static_grid&&(d.staticGrid=d.static_grid,f("static_grid","staticGrid")),"undefined"!=typeof d.is_nested&&(d.isNested=d.is_nested,f("is_nested","isNested")),"undefined"!=typeof d.always_show_resize_handle&&(d.alwaysShowResizeHandle=d.always_show_resize_handle,f("always_show_resize_handle","alwaysShowResizeHandle")),d.itemClass=d.itemClass||"grid-stack-item";var h=this.container.closest("."+d.itemClass).size()>0;if(this.opts=b.defaults(d||{},{width:parseInt(this.container.attr("data-gs-width"))||12,height:parseInt(this.container.attr("data-gs-height"))||0,itemClass:"grid-stack-item",placeholderClass:"grid-stack-placeholder",placeholderText:"",handle:".grid-stack-item-content",handleClass:null,cellHeight:60,verticalMargin:20,auto:!0,minWidth:768,"float":!1,staticGrid:!1,_class:"grid-stack-instance-"+(1e4*Math.random()).toFixed(0),animate:Boolean(this.container.attr("data-gs-animate"))||!1,alwaysShowResizeHandle:d.alwaysShowResizeHandle||!1,resizable:b.defaults(d.resizable||{},{autoHide:!d.alwaysShowResizeHandle,handles:"se"}),draggable:b.defaults(d.draggable||{},{handle:(d.handleClass?"."+d.handleClass:d.handle?d.handle:"")||".grid-stack-item-content",scroll:!1,appendTo:"body"})}),this.opts.isNested=h,this.cellHeight(this.opts.cellHeight,!0),this.verticalMargin(this.opts.verticalMargin,!0),this.container.addClass(this.opts._class),this._setStaticClass(),h&&this.container.addClass("grid-stack-nested"),this._initStyles(),this.grid=new i(this.opts.width,function(a){var c=0;b.each(a,function(a){null===a._id?a.el.remove():(a.el.attr("data-gs-x",a.x).attr("data-gs-y",a.y).attr("data-gs-width",a.width).attr("data-gs-height",a.height),c=Math.max(c,a.y+a.height))}),g._updateStyles(c+10)},this.opts["float"],this.opts.height),this.opts.auto){var j=[],k=this;this.container.children("."+this.opts.itemClass+":not(."+this.opts.placeholderClass+")").each(function(b,c){c=a(c),j.push({el:c,i:parseInt(c.attr("data-gs-x"))+parseInt(c.attr("data-gs-y"))*k.opts.width})}),b.chain(j).sortBy(function(a){return a.i}).each(function(a){g._prepareElement(a.el)}).value()}this.setAnimation(this.opts.animate),this.placeholder=a('<div class="'+this.opts.placeholderClass+" "+this.opts.itemClass+'"><div class="placeholder-content">'+this.opts.placeholderText+"</div></div>").hide(),this._updateContainerHeight(),this.onResizeHandler=function(){if(g._isOneColumnMode()){if(e)return;e=!0,g.grid._sortNodes(),b.each(g.grid.nodes,function(a){g.container.append(a.el),g.opts.staticGrid||(a.noMove||a.el.draggable("disable"),a.noResize||a.el.resizable("disable"))})}else{if(!e)return;if(e=!1,g.opts.staticGrid)return;b.each(g.grid.nodes,function(a){a.noMove||a.el.draggable("enable"),a.noResize||a.el.resizable("enable")})}},a(window).resize(this.onResizeHandler),this.onResizeHandler()};
+// jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+// jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+return j.prototype._triggerChangeEvent=function(a){var b=this.grid.getDirtyNodes(),c=!1,d=[];b&&b.length&&(d.push(b),c=!0),(c||a===!0)&&this.container.trigger("change",d)},j.prototype._initStyles=function(){this.opts.cellHeight&&(this._stylesId&&a('[data-gs-id="'+this._stylesId+'"]').remove(),this._stylesId="gridstack-style-"+(1e5*Math.random()).toFixed(),this._styles=g.createStylesheet(this._stylesId),null!=this._styles&&(this._styles._max=0))},j.prototype._updateStyles=function(a){if(null!==this._styles){var b,c="."+this.opts._class+" ."+this.opts.itemClass,d=this;if("undefined"==typeof a&&(a=this._styles._max,this._initStyles(),this._updateContainerHeight()),this.opts.cellHeight&&!(0!==this._styles._max&&a<=this._styles._max)&&(b=this.opts.verticalMargin&&this.opts.cellHeightUnit!==this.opts.verticalMarginUnit?function(a,b){return a&&b?"calc("+(d.opts.cellHeight*a+d.opts.cellHeightUnit)+" + "+(d.opts.verticalMargin*b+d.opts.verticalMarginUnit)+")":d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit}:function(a,b){return d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit},0===this._styles._max&&g.insertCSSRule(this._styles,c,"min-height: "+b(1,0)+";",0),a>this._styles._max)){for(var e=this._styles._max;a>e;++e)g.insertCSSRule(this._styles,c+'[data-gs-height="'+(e+1)+'"]',"height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-min-height="'+(e+1)+'"]',"min-height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-max-height="'+(e+1)+'"]',"max-height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-y="'+e+'"]',"top: "+b(e,e)+";",e);this._styles._max=a}}},j.prototype._updateContainerHeight=function(){if(!this.grid._updateCounter){var a=this.grid.getGridHeight();this.container.attr("data-gs-current-height",a),this.opts.cellHeight&&(this.opts.verticalMargin?this.opts.cellHeightUnit===this.opts.verticalMarginUnit?this.container.css("height",a*(this.opts.cellHeight+this.opts.verticalMargin)-this.opts.verticalMargin+this.opts.cellHeightUnit):this.container.css("height","calc("+(a*this.opts.cellHeight+this.opts.cellHeightUnit)+" + "+(a*(this.opts.verticalMargin-1)+this.opts.verticalMarginUnit)+")"):this.container.css("height",a*this.opts.cellHeight+this.opts.cellHeightUnit))}},j.prototype._isOneColumnMode=function(){return(window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth)<=this.opts.minWidth},j.prototype._prepareElement=function(c){var d=this;c=a(c),c.addClass(this.opts.itemClass);var e=d.grid.addNode({x:c.attr("data-gs-x"),y:c.attr("data-gs-y"),width:c.attr("data-gs-width"),height:c.attr("data-gs-height"),maxWidth:c.attr("data-gs-max-width"),minWidth:c.attr("data-gs-min-width"),maxHeight:c.attr("data-gs-max-height"),minHeight:c.attr("data-gs-min-height"),autoPosition:g.toBool(c.attr("data-gs-auto-position")),noResize:g.toBool(c.attr("data-gs-no-resize")),noMove:g.toBool(c.attr("data-gs-no-move")),locked:g.toBool(c.attr("data-gs-locked")),el:c});if(c.data("_gridstack_node",e),!d.opts.staticGrid){var f,h,i=function(a,b){var c,g,i=Math.round(b.position.left/f),j=Math.floor((b.position.top+h/2)/h);"drag"!=a.type&&(c=Math.round(b.size.width/f),g=Math.round(b.size.height/h)),d.grid.canMoveNode(e,i,j,c,g)&&(d.grid.moveNode(e,i,j,c,g),d._updateContainerHeight())},j=function(b,g){d.container.append(d.placeholder);var i=a(this);d.grid.cleanNodes(),d.grid.beginUpdate(e),f=Math.ceil(i.outerWidth()/i.attr("data-gs-width"));var j=Math.ceil(i.outerHeight()/i.attr("data-gs-height"));h=d.container.height()/parseInt(d.container.attr("data-gs-current-height")),d.placeholder.attr("data-gs-x",i.attr("data-gs-x")).attr("data-gs-y",i.attr("data-gs-y")).attr("data-gs-width",i.attr("data-gs-width")).attr("data-gs-height",i.attr("data-gs-height")).show(),e.el=d.placeholder,c.resizable("option","minWidth",f*(e.minWidth||1)),c.resizable("option","minHeight",j*(e.minHeight||1)),"resizestart"==b.type&&i.find(".grid-stack-item").trigger("resizestart")},k=function(b,c){d.placeholder.detach();var f=a(this);e.el=f,d.placeholder.hide(),f.attr("data-gs-x",e.x).attr("data-gs-y",e.y).attr("data-gs-width",e.width).attr("data-gs-height",e.height).removeAttr("style"),d._updateContainerHeight(),d._triggerChangeEvent(),d.grid.endUpdate();var g=f.find(".grid-stack");g.length&&"resizestop"==b.type&&(g.each(function(b,c){a(c).data("gridstack").onResizeHandler()}),f.find(".grid-stack-item").trigger("resizestop"))};c.draggable(b.extend(this.opts.draggable,{containment:this.opts.isNested?this.container.parent():null,start:j,stop:k,drag:i})).resizable(b.extend(this.opts.resizable,{start:j,stop:k,resize:i})),(e.noMove||this._isOneColumnMode())&&c.draggable("disable"),(e.noResize||this._isOneColumnMode())&&c.resizable("disable"),c.attr("data-gs-locked",e.locked?"yes":null)}},j.prototype.setAnimation=function(a){a?this.container.addClass("grid-stack-animate"):this.container.removeClass("grid-stack-animate")},j.prototype.addWidget=function(b,c,d,e,f,g){return b=a(b),"undefined"!=typeof c&&b.attr("data-gs-x",c),"undefined"!=typeof d&&b.attr("data-gs-y",d),"undefined"!=typeof e&&b.attr("data-gs-width",e),"undefined"!=typeof f&&b.attr("data-gs-height",f),"undefined"!=typeof g&&b.attr("data-gs-auto-position",g?"yes":null),this.container.append(b),this._prepareElement(b),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},j.prototype.makeWidget=function(b){return b=a(b),this._prepareElement(b),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},j.prototype.willItFit=function(a,b,c,d,e){var f={x:a,y:b,width:c,height:d,autoPosition:e};return this.grid.canBePlacedWithRespectToHeight(f)},j.prototype.removeWidget=function(b,c){c="undefined"==typeof c?!0:c,b=a(b);var d=b.data("_gridstack_node");this.grid.removeNode(d),b.removeData("_gridstack_node"),this._updateContainerHeight(),c&&b.remove(),this._triggerChangeEvent(!0)},j.prototype.removeAll=function(a){b.each(this.grid.nodes,b.bind(function(b){this.removeWidget(b.el,a)},this)),this.grid.nodes=[],this._updateContainerHeight()},j.prototype.destroy=function(){a(window).off("resize",this.onResizeHandler),this.disable(),this.container.remove(),g.removeStylesheet(this._stylesId),this.grid&&(this.grid=null)},j.prototype.resizable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");"undefined"!=typeof f&&null!==f&&(f.noResize=!c,f.noResize||d._isOneColumnMode()?e.resizable("disable"):e.resizable("enable"))}),this},j.prototype.movable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");"undefined"!=typeof f&&null!==f&&(f.noMove=!c,f.noMove||d._isOneColumnMode()?(e.draggable("disable"),e.removeClass("ui-draggable-handle")):(e.draggable("enable"),e.addClass("ui-draggable-handle")))}),this},j.prototype.disable=function(){this.movable(this.container.children("."+this.opts.itemClass),!1),this.resizable(this.container.children("."+this.opts.itemClass),!1),this.container.trigger("disable")},j.prototype.enable=function(){this.movable(this.container.children("."+this.opts.itemClass),!0),this.resizable(this.container.children("."+this.opts.itemClass),!0),this.container.trigger("enable")},j.prototype.locked=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!==e&&(e.locked=c||!1,d.attr("data-gs-locked",e.locked?"yes":null))}),this},j.prototype.maxHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(isNaN(c)||(e.maxHeight=c||!1,d.attr("data-gs-max-height",c)))}),this},j.prototype.minHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(isNaN(c)||(e.minHeight=c||!1,d.attr("data-gs-min-height",c)))}),this},j.prototype.maxWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(isNaN(c)||(e.maxWidth=c||!1,d.attr("data-gs-max-width",c)))}),this},j.prototype.minWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!=e&&(isNaN(c)||(e.minWidth=c||!1,d.attr("data-gs-min-width",c)))}),this},j.prototype._updateElement=function(b,c){b=a(b).first();var d=b.data("_gridstack_node");if("undefined"!=typeof d&&null!==d){var e=this;e.grid.cleanNodes(),e.grid.beginUpdate(d),c.call(this,b,d),e._updateContainerHeight(),e._triggerChangeEvent(),e.grid.endUpdate()}},j.prototype.resize=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&"undefined"!=typeof b?b:d.width,c=null!==c&&"undefined"!=typeof c?c:d.height,this.grid.moveNode(d,d.x,d.y,b,c)})},j.prototype.move=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&"undefined"!=typeof b?b:d.x,c=null!==c&&"undefined"!=typeof c?c:d.y,this.grid.moveNode(d,b,c,d.width,d.height)})},j.prototype.update=function(a,b,c,d,e){this._updateElement(a,function(a,f){b=null!==b&&"undefined"!=typeof b?b:f.x,c=null!==c&&"undefined"!=typeof c?c:f.y,d=null!==d&&"undefined"!=typeof d?d:f.width,e=null!==e&&"undefined"!=typeof e?e:f.height,this.grid.moveNode(f,b,c,d,e)})},j.prototype.verticalMargin=function(a,b){if("undefined"==typeof a)return this.opts.verticalMargin;var d=c(a);(this.opts.verticalMarginUnit!==d.unit||this.opts.height!==d.height)&&(this.opts.verticalMarginUnit=d.unit,this.opts.verticalMargin=d.height,b||this._updateStyles())},j.prototype.cellHeight=function(a,b){if("undefined"==typeof a){if(this.opts.cellHeight)return this.opts.cellHeight;var d=this.container.children("."+this.opts.itemClass).first();return Math.ceil(d.outerHeight()/d.attr("data-gs-height"))}var e=c(a);(this.opts.cellHeightUnit!==e.heightUnit||this.opts.height!==e.height)&&(this.opts.cellHeightUnit=e.unit,this.opts.cellHeight=e.height,b||this._updateStyles())},j.prototype.cellWidth=function(){var a=this.container.children("."+this.opts.itemClass).first();return Math.ceil(a.outerWidth()/a.attr("data-gs-width"))},j.prototype.getCellFromPixel=function(a){var b=this.container.position(),c=a.left-b.left,d=a.top-b.top,e=Math.floor(this.container.width()/this.opts.width),f=Math.floor(this.container.height()/parseInt(this.container.attr("data-gs-current-height")));return{x:Math.floor(c/e),y:Math.floor(d/f)}},j.prototype.batchUpdate=function(){this.grid.batchUpdate()},j.prototype.commit=function(){this.grid.commit(),this._updateContainerHeight()},j.prototype.isAreaEmpty=function(a,b,c,d){return this.grid.isAreaEmpty(a,b,c,d)},j.prototype.setStatic=function(a){this.opts.staticGrid=a===!0,this._setStaticClass()},j.prototype._setStaticClass=function(){var a="grid-stack-static";this.opts.staticGrid===!0?this.container.addClass(a):this.container.removeClass(a)},i.prototype.batch_update=e(i.prototype.batchUpdate),i.prototype._fix_collisions=e(i.prototype._fixCollisions,"_fix_collisions","_fixCollisions"),i.prototype.is_area_empty=e(i.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),i.prototype._sort_nodes=e(i.prototype._sortNodes,"_sort_nodes","_sortNodes"),i.prototype._pack_nodes=e(i.prototype._packNodes,"_pack_nodes","_packNodes"),i.prototype._prepare_node=e(i.prototype._prepareNode,"_prepare_node","_prepareNode"),i.prototype.clean_nodes=e(i.prototype.cleanNodes,"clean_nodes","cleanNodes"),i.prototype.get_dirty_nodes=e(i.prototype.getDirtyNodes,"get_dirty_nodes","getDirtyNodes"),i.prototype.add_node=e(i.prototype.addNode,"add_node","addNode, 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 //# sourceMappingURL=gridstack.min.map
\ No newline at end of file
diff --git a/dist/gridstack.min.map b/dist/gridstack.min.map
index 44d7f2f..f2b6988 100644
--- a/dist/gridstack.min.map
+++ b/dist/gridstack.min.map
@@ -1 +1 @@
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\ No newline at end of file
diff --git a/src/gridstack.js b/src/gridstack.js
index 36689a4..73bdd28 100644
--- a/src/gridstack.js
+++ b/src/gridstack.js
@@ -9,21 +9,35 @@
     if (typeof define === 'function' && define.amd) {
         define(['jquery', 'lodash', 'jquery-ui/core', 'jquery-ui/widget', 'jquery-ui/mouse', 'jquery-ui/draggable',
             'jquery-ui/resizable'], factory);
-    }
-    else if (typeof exports !== 'undefined') {
-      try { jQuery = require('jquery'); } catch(e) {}
-      try { _ = require('lodash'); } catch(e) {}
-      factory(jQuery, _);
-    }
-    else {
+    } else if (typeof exports !== 'undefined') {
+        try { jQuery = require('jquery'); } catch (e) {}
+        try { _ = require('lodash'); } catch (e) {}
+        factory(jQuery, _);
+    } else {
         factory(jQuery, _);
     }
 })(function($, _) {
 
     var scope = window;
 
+    var obsolete = function(f, oldName, newName) {
+        var wrapper = function() {
+            console.warn('gridstack.js: Function `' + oldName + '` is deprecated as of v0.2.5 and has been replaced with `' +
+                newName + '`. It will be **completely** removed in v1.0.');
+            return f.apply(this, arguments);
+        };
+        wrapper.prototype = f.prototype;
+
+        return wrapper;
+    };
+
+    var obsoleteOpts = function(oldName, newName) {
+        console.warn('gridstack.js: Option `' + oldName + '` is deprecated as of v0.2.5 and has been replaced with `' +
+            newName + '`. It will be **completely** removed in v1.0.');
+    };
+
     var Utils = {
-        is_intercepted: function(a, b) {
+        isIntercepted: function(a, b) {
             return !(a.x + a.width <= b.x || b.x + b.width <= a.x || a.y + a.height <= b.y || b.y + b.height <= a.y);
         },
 
@@ -33,170 +47,192 @@
             return _.sortBy(nodes, function(n) { return dir * (n.x + n.y * width); });
         },
 
-        create_stylesheet: function(id) {
+        createStylesheet: function(id) {
             var style = document.createElement('style');
             style.setAttribute('type', 'text/css');
             style.setAttribute('data-gs-id', id);
             if (style.styleSheet) {
                 style.styleSheet.cssText = '';
-            }
-            else {
+            } else {
                 style.appendChild(document.createTextNode(''));
             }
             document.getElementsByTagName('head')[0].appendChild(style);
             return style.sheet;
         },
-        remove_stylesheet: function(id) {
-            $("STYLE[data-gs-id=" + id +"]").remove();
+
+        removeStylesheet: function(id) {
+            $('STYLE[data-gs-id=' + id + ']').remove();
         },
-        insert_css_rule: function(sheet, selector, rules, index) {
+
+        insertCSSRule: function(sheet, selector, rules, index) {
             if (typeof sheet.insertRule === 'function') {
                 sheet.insertRule(selector + '{' + rules + '}', index);
-            }
-            else if (typeof sheet.addRule === 'function') {
+            } else if (typeof sheet.addRule === 'function') {
                 sheet.addRule(selector, rules, index);
             }
         },
 
         toBool: function(v) {
-            if (typeof v == 'boolean')
+            if (typeof v == 'boolean') {
                 return v;
+            }
             if (typeof v == 'string') {
                 v = v.toLowerCase();
-                return !(v == '' || v == 'no' || v == 'false' || v == '0');
+                return !(v === '' || v == 'no' || v == 'false' || v == '0');
             }
             return Boolean(v);
+        },
+
+        _collisionNodeCheck: function(n) {
+            return n != this.node && Utils.isIntercepted(n, this.nn);
+        },
+
+        _didCollideFloat: function(bn) {
+            return this.n != bn &&
+                Utils.isIntercepted({x: this.n.x, y: this.newY, width: this.n.width, height: this.n.height}, bn);
+        },
+
+        _didCollide: function(bn) {
+            return Utils.isIntercepted({x: this.n.x, y: this.newY, width: this.n.width, height: this.n.height}, bn);
+        },
+
+        _isAddNodeIntercepted: function(n) {
+            return Utils.isIntercepted({x: this.x, y: this.y, width: this.node.width, height: this.node.height}, n);
         }
     };
 
-    var id_seq = 0;
+    // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+    Utils.is_intercepted = obsolete(Utils.isIntercepted, 'is_intercepted', 'isIntercepted');
 
-    var GridStackEngine = function(width, onchange, float_mode, height, items) {
+    Utils.create_stylesheet = obsolete(Utils.createStylesheet, 'create_stylesheet', 'createStylesheet');
+
+    Utils.remove_stylesheet = obsolete(Utils.removeStylesheet, 'remove_stylesheet', 'removeStylesheet');
+
+    Utils.insert_css_rule = obsolete(Utils.insertCSSRule, 'insert_css_rule', 'insertCSSRule');
+    // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+
+    var idSeq = 0;
+
+    var GridStackEngine = function(width, onchange, floatMode, height, items) {
         this.width = width;
-        this['float'] = float_mode || false;
+        this.float = floatMode || false;
         this.height = height || 0;
 
         this.nodes = items || [];
         this.onchange = onchange || function() {};
 
-        this._update_counter = 0;
-        this._float = this['float'];
+        this._updateCounter = 0;
+        this._float = this.float;
     };
 
-    GridStackEngine.prototype.batch_update = function() {
-        this._update_counter = 1;
+    GridStackEngine.prototype.batchUpdate = function() {
+        this._updateCounter = 1;
         this.float = true;
     };
 
     GridStackEngine.prototype.commit = function() {
-        this._update_counter = 0;
-        if (this._update_counter == 0) {
+        this._updateCounter = 0;
+        if (this._updateCounter === 0) {
             this.float = this._float;
-            this._pack_nodes();
+            this._packNodes();
             this._notify();
         }
     };
 
-    GridStackEngine.prototype._fix_collisions = function(node) {
-        this._sort_nodes(-1);
+    GridStackEngine.prototype._fixCollisions = function(node) {
+        var self = this;
+        this._sortNodes(-1);
 
-        var nn = node, has_locked = Boolean(_.find(this.nodes, function(n) { return n.locked }));
-        if (!this.float && !has_locked) {
+        var nn = node;
+        var hasLocked = Boolean(_.find(this.nodes, function(n) { return n.locked; }));
+        if (!this.float && !hasLocked) {
             nn = {x: 0, y: node.y, width: this.width, height: node.height};
         }
-
         while (true) {
-            var collision_node = _.find(this.nodes, _.bind(function(n) {
-                return n != node && Utils.is_intercepted(n, nn);
-            }, this));
-            if (typeof collision_node == 'undefined') {
+            var collisionNode = _.find(this.nodes, _.bind(Utils._collisionNodeCheck, {node: node, nn: nn}));
+            if (typeof collisionNode == 'undefined') {
                 return;
             }
-            this.move_node(collision_node, collision_node.x, node.y + node.height,
-                collision_node.width, collision_node.height, true);
+            this.moveNode(collisionNode, collisionNode.x, node.y + node.height,
+                collisionNode.width, collisionNode.height, true);
         }
     };
 
-    GridStackEngine.prototype.is_area_empty = function(x, y, width, height) {
+    GridStackEngine.prototype.isAreaEmpty = function(x, y, width, height) {
         var nn = {x: x || 0, y: y || 0, width: width || 1, height: height || 1};
-        var collision_node = _.find(this.nodes, _.bind(function(n) {
-            return Utils.is_intercepted(n, nn);
+        var collisionNode = _.find(this.nodes, _.bind(function(n) {
+            return Utils.isIntercepted(n, nn);
         }, this));
-        return collision_node == null;
+        return collisionNode === null;
     };
 
-    GridStackEngine.prototype._sort_nodes = function(dir) {
+    GridStackEngine.prototype._sortNodes = function(dir) {
         this.nodes = Utils.sort(this.nodes, dir, this.width);
     };
 
-    GridStackEngine.prototype._pack_nodes = function() {
-        this._sort_nodes();
+    GridStackEngine.prototype._packNodes = function() {
+        this._sortNodes();
 
         if (this.float) {
             _.each(this.nodes, _.bind(function(n, i) {
-                if (n._updating || typeof n._orig_y == 'undefined' || n.y == n._orig_y)
+                if (n._updating || typeof n._origY == 'undefined' || n.y == n._origY) {
                     return;
+                }
 
-                var new_y = n.y;
-                while (new_y >= n._orig_y) {
-                    var collision_node = _.chain(this.nodes)
-                        .find(function(bn) {
-                            return n != bn &&
-                                Utils.is_intercepted({x: n.x, y: new_y, width: n.width, height: n.height}, bn);
-                        })
+                var newY = n.y;
+                while (newY >= n._origY) {
+                    var collisionNode = _.chain(this.nodes)
+                        .find(_.bind(Utils._didCollide, {n: n, newY: newY}))
                         .value();
 
-                    if (!collision_node) {
+                    if (!collisionNode) {
                         n._dirty = true;
-                        n.y = new_y;
+                        n.y = newY;
                     }
-                    --new_y;
+                    --newY;
                 }
             }, this));
-        }
-        else {
+        } else {
             _.each(this.nodes, _.bind(function(n, i) {
-                if (n.locked)
+                if (n.locked) {
                     return;
+                }
                 while (n.y > 0) {
-                    var new_y = n.y - 1;
-                    var can_be_moved = i == 0;
+                    var newY = n.y - 1;
+                    var canBeMoved = i === 0;
 
                     if (i > 0) {
-                        var collision_node = _.chain(this.nodes)
+                        var collisionNode = _.chain(this.nodes)
                             .take(i)
-                            .find(function(bn) {
-                                return Utils.is_intercepted({x: n.x, y: new_y, width: n.width, height: n.height}, bn);
-                            })
+                            .find(_.bind(Utils._didCollide, {n: n, newY: newY}))
                             .value();
-                        can_be_moved = typeof collision_node == 'undefined';
+                        canBeMoved = typeof collisionNode == 'undefined';
                     }
 
-                    if (!can_be_moved) {
+                    if (!canBeMoved) {
                         break;
                     }
-                    n._dirty = n.y != new_y;
-                    n.y = new_y;
+                    n._dirty = n.y != newY;
+                    n.y = newY;
                 }
             }, this));
         }
     };
 
-    GridStackEngine.prototype._prepare_node = function(node, resizing) {
-        node = _.defaults(node || {}, {width: 1, height: 1, x: 0, y: 0 });
+    GridStackEngine.prototype._prepareNode = function(node, resizing) {
+        node = _.defaults(node || {}, {width: 1, height: 1, x: 0, y: 0});
 
         node.x = parseInt('' + node.x);
         node.y = parseInt('' + node.y);
         node.width = parseInt('' + node.width);
         node.height = parseInt('' + node.height);
-        node.auto_position = node.auto_position || false;
-        node.no_resize = node.no_resize || false;
-        node.no_move = node.no_move || false;
+        node.autoPosition = node.autoPosition || false;
+        node.noResize = node.noResize || false;
+        node.noMove = node.noMove || false;
 
         if (node.width > this.width) {
             node.width = this.width;
-        }
-        else if (node.width < 1) {
+        } else if (node.width < 1) {
             node.width = 1;
         }
 
@@ -211,8 +247,7 @@
         if (node.x + node.width > this.width) {
             if (resizing) {
                 node.width = this.width - node.x;
-            }
-            else {
+            } else {
                 node.x = this.width - node.width;
             }
         }
@@ -225,44 +260,43 @@
     };
 
     GridStackEngine.prototype._notify = function() {
-        if (this._update_counter) {
+        if (this._updateCounter) {
             return;
         }
-        var deleted_nodes = Array.prototype.slice.call(arguments, 1).concat(this.get_dirty_nodes());
-        deleted_nodes = deleted_nodes.concat(this.get_dirty_nodes());
-        this.onchange(deleted_nodes);
+        var deletedNodes = Array.prototype.slice.call(arguments, 1).concat(this.getDirtyNodes());
+        deletedNodes = deletedNodes.concat(this.getDirtyNodes());
+        this.onchange(deletedNodes);
     };
 
-    GridStackEngine.prototype.clean_nodes = function() {
-        _.each(this.nodes, function(n) {n._dirty = false });
+    GridStackEngine.prototype.cleanNodes = function() {
+        _.each(this.nodes, function(n) {n._dirty = false; });
     };
 
-    GridStackEngine.prototype.get_dirty_nodes = function() {
+    GridStackEngine.prototype.getDirtyNodes = function() {
         return _.filter(this.nodes, function(n) { return n._dirty; });
     };
 
-    GridStackEngine.prototype.add_node = function(node) {
-        node = this._prepare_node(node);
+    GridStackEngine.prototype.addNode = function(node) {
+        node = this._prepareNode(node);
 
-        if (typeof node.max_width != 'undefined') node.width = Math.min(node.width, node.max_width);
-        if (typeof node.max_height != 'undefined') node.height = Math.min(node.height, node.max_height);
-        if (typeof node.min_width != 'undefined') node.width = Math.max(node.width, node.min_width);
-        if (typeof node.min_height != 'undefined') node.height = Math.max(node.height, node.min_height);
+        if (typeof node.maxWidth != 'undefined') { node.width = Math.min(node.width, node.maxWidth); }
+        if (typeof node.maxHeight != 'undefined') { node.height = Math.min(node.height, node.maxHeight); }
+        if (typeof node.minWidth != 'undefined') { node.width = Math.max(node.width, node.minWidth); }
+        if (typeof node.minHeight != 'undefined') { node.height = Math.max(node.height, node.minHeight); }
 
-        node._id = ++id_seq;
+        node._id = ++idSeq;
         node._dirty = true;
 
-        if (node.auto_position) {
-            this._sort_nodes();
+        if (node.autoPosition) {
+            this._sortNodes();
 
             for (var i = 0;; ++i) {
-                var x = i % this.width, y = Math.floor(i / this.width);
+                var x = i % this.width;
+                var y = Math.floor(i / this.width);
                 if (x + node.width > this.width) {
                     continue;
                 }
-                if (!_.find(this.nodes, function(n) {
-                    return Utils.is_intercepted({x: x, y: y, width: node.width, height: node.height}, n);
-                })) {
+                if (!_.find(this.nodes, _.bind(Utils._isAddNodeIntercepted, {x: x, y: y, node: node}))) {
                     node.x = x;
                     node.y = y;
                     break;
@@ -272,26 +306,27 @@
 
         this.nodes.push(node);
 
-        this._fix_collisions(node);
-        this._pack_nodes();
+        this._fixCollisions(node);
+        this._packNodes();
         this._notify();
         return node;
     };
 
-    GridStackEngine.prototype.remove_node = function(node) {
+    GridStackEngine.prototype.removeNode = function(node) {
         node._id = null;
         this.nodes = _.without(this.nodes, node);
-        this._pack_nodes();
+        this._packNodes();
         this._notify(node);
     };
 
-    GridStackEngine.prototype.can_move_node = function(node, x, y, width, height) {
-        var has_locked = Boolean(_.find(this.nodes, function(n) { return n.locked }));
+    GridStackEngine.prototype.canMoveNode = function(node, x, y, width, height) {
+        var hasLocked = Boolean(_.find(this.nodes, function(n) { return n.locked; }));
 
-        if (!this.height && !has_locked)
+        if (!this.height && !hasLocked) {
             return true;
+        }
 
-        var cloned_node;
+        var clonedNode;
         var clone = new GridStackEngine(
             this.width,
             null,
@@ -299,50 +334,53 @@
             0,
             _.map(this.nodes, function(n) {
                 if (n == node) {
-                    cloned_node = $.extend({}, n);
-                    return cloned_node;
+                    clonedNode = $.extend({}, n);
+                    return clonedNode;
                 }
                 return $.extend({}, n);
             }));
 
-        clone.move_node(cloned_node, x, y, width, height);
+        clone.moveNode(clonedNode, x, y, width, height);
 
         var res = true;
 
-        if (has_locked)
+        if (hasLocked) {
             res &= !Boolean(_.find(clone.nodes, function(n) {
-                return n != cloned_node && Boolean(n.locked) && Boolean(n._dirty);
+                return n != clonedNode && Boolean(n.locked) && Boolean(n._dirty);
             }));
-        if (this.height)
-            res &= clone.get_grid_height() <= this.height;
+        }
+        if (this.height) {
+            res &= clone.getGridHeight() <= this.height;
+        }
 
         return res;
     };
 
-    GridStackEngine.prototype.can_be_placed_with_respect_to_height = function(node) {
-        if (!this.height)
+    GridStackEngine.prototype.canBePlacedWithRespectToHeight = function(node) {
+        if (!this.height) {
             return true;
+        }
 
         var clone = new GridStackEngine(
             this.width,
             null,
             this.float,
             0,
-            _.map(this.nodes, function(n) { return $.extend({}, n) }));
-        clone.add_node(node);
-        return clone.get_grid_height() <= this.height;
+            _.map(this.nodes, function(n) { return $.extend({}, n); }));
+        clone.addNode(node);
+        return clone.getGridHeight() <= this.height;
     };
 
-    GridStackEngine.prototype.move_node = function(node, x, y, width, height, no_pack) {
-        if (typeof x != 'number') x = node.x;
-        if (typeof y != 'number') y = node.y;
-        if (typeof width != 'number') width = node.width;
-        if (typeof height != 'number') height = node.height;
+    GridStackEngine.prototype.moveNode = function(node, x, y, width, height, noPack) {
+        if (typeof x != 'number') { x = node.x; }
+        if (typeof y != 'number') { y = node.y; }
+        if (typeof width != 'number') { width = node.width; }
+        if (typeof height != 'number') { height = node.height; }
 
-        if (typeof node.max_width != 'undefined') width = Math.min(width, node.max_width);
-        if (typeof node.max_height != 'undefined') height = Math.min(height, node.max_height);
-        if (typeof node.min_width != 'undefined') width = Math.max(width, node.min_width);
-        if (typeof node.min_height != 'undefined') height = Math.max(height, node.min_height);
+        if (typeof node.maxWidth != 'undefined') { width = Math.min(width, node.maxWidth); }
+        if (typeof node.maxHeight != 'undefined') { height = Math.min(height, node.maxHeight); }
+        if (typeof node.minWidth != 'undefined') { width = Math.max(width, node.minWidth); }
+        if (typeof node.minHeight != 'undefined') { height = Math.max(height, node.minHeight); }
 
         if (node.x == x && node.y == y && node.width == width && node.height == height) {
             return node;
@@ -356,30 +394,30 @@
         node.width = width;
         node.height = height;
 
-        node = this._prepare_node(node, resizing);
+        node = this._prepareNode(node, resizing);
 
-        this._fix_collisions(node);
-        if (!no_pack) {
-            this._pack_nodes();
+        this._fixCollisions(node);
+        if (!noPack) {
+            this._packNodes();
             this._notify();
         }
         return node;
     };
 
-    GridStackEngine.prototype.get_grid_height = function() {
+    GridStackEngine.prototype.getGridHeight = function() {
         return _.reduce(this.nodes, function(memo, n) { return Math.max(memo, n.y + n.height); }, 0);
     };
 
-    GridStackEngine.prototype.begin_update = function(node) {
+    GridStackEngine.prototype.beginUpdate = function(node) {
         _.each(this.nodes, function(n) {
-            n._orig_y = n.y;
+            n._origY = n.y;
         });
         node._updating = true;
     };
 
-    GridStackEngine.prototype.end_update = function() {
+    GridStackEngine.prototype.endUpdate = function() {
         _.each(this.nodes, function(n) {
-            n._orig_y = n.y;
+            n._origY = n.y;
         });
         var n = _.find(this.nodes, function(n) { return n._updating; });
         if (n) {
@@ -388,79 +426,128 @@
     };
 
     var GridStack = function(el, opts) {
-        var self = this, one_column_mode;
+        var self = this;
+        var oneColumnMode;
 
         opts = opts || {};
 
         this.container = $(el);
 
-        opts.item_class = opts.item_class || 'grid-stack-item';
-        var is_nested = this.container.closest('.' + opts.item_class).size() > 0;
+        // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+        if (typeof opts.handle_class !== 'undefined') {
+            opts.handleClass = opts.handle_class;
+            obsoleteOpts('handle_class', 'handleClass');
+        }
+        if (typeof opts.item_class !== 'undefined') {
+            opts.itemClass = opts.item_class;
+            obsoleteOpts('item_class', 'itemClass');
+        }
+        if (typeof opts.placeholder_class !== 'undefined') {
+            opts.placeholderClass = opts.placeholder_class;
+            obsoleteOpts('placeholder_class', 'placeholderClass');
+        }
+        if (typeof opts.placeholder_text !== 'undefined') {
+            opts.placeholderText = opts.placeholder_text;
+            obsoleteOpts('placeholder_text', 'placeholderText');
+        }
+        if (typeof opts.item_class !== 'undefined') {
+            opts.itemClass = opts.item_class;
+            obsoleteOpts('item_class', 'itemClass');
+        }
+        if (typeof opts.cell_height !== 'undefined') {
+            opts.cellHeight = opts.cell_height;
+            obsoleteOpts('cell_height', 'cellHeight');
+        }
+        if (typeof opts.vertical_margin !== 'undefined') {
+            opts.verticalMargin = opts.vertical_margin;
+            obsoleteOpts('vertical_margin', 'verticalMargin');
+        }
+        if (typeof opts.min_width !== 'undefined') {
+            opts.minWidth = opts.min_width;
+            obsoleteOpts('min_width', 'minWidth');
+        }
+        if (typeof opts.static_grid !== 'undefined') {
+            opts.staticGrid = opts.static_grid;
+            obsoleteOpts('static_grid', 'staticGrid');
+        }
+        if (typeof opts.is_nested !== 'undefined') {
+            opts.isNested = opts.is_nested;
+            obsoleteOpts('is_nested', 'isNested');
+        }
+        if (typeof opts.always_show_resize_handle !== 'undefined') {
+            opts.alwaysShowResizeHandle = opts.always_show_resize_handle;
+            obsoleteOpts('always_show_resize_handle', 'alwaysShowResizeHandle');
+        }
+        // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+
+        opts.itemClass = opts.itemClass || 'grid-stack-item';
+        var isNested = this.container.closest('.' + opts.itemClass).size() > 0;
 
         this.opts = _.defaults(opts || {}, {
             width: parseInt(this.container.attr('data-gs-width')) || 12,
             height: parseInt(this.container.attr('data-gs-height')) || 0,
-            item_class: 'grid-stack-item',
-            placeholder_class: 'grid-stack-placeholder',
-            placeholder_text: '',
+            itemClass: 'grid-stack-item',
+            placeholderClass: 'grid-stack-placeholder',
+            placeholderText: '',
             handle: '.grid-stack-item-content',
-            handle_class: null,
-            cell_height: 60,
-            vertical_margin: 20,
+            handleClass: null,
+            cellHeight: 60,
+            verticalMargin: 20,
             auto: true,
-            min_width: 768,
+            minWidth: 768,
             float: false,
-            static_grid: false,
+            staticGrid: false,
             _class: 'grid-stack-instance-' + (Math.random() * 10000).toFixed(0),
             animate: Boolean(this.container.attr('data-gs-animate')) || false,
-            always_show_resize_handle: opts.always_show_resize_handle || false,
+            alwaysShowResizeHandle: opts.alwaysShowResizeHandle || false,
             resizable: _.defaults(opts.resizable || {}, {
-                autoHide: !(opts.always_show_resize_handle || false),
+                autoHide: !(opts.alwaysShowResizeHandle || false),
                 handles: 'se'
             }),
             draggable: _.defaults(opts.draggable || {}, {
-                handle: (opts.handle_class ? '.' + opts.handle_class : (opts.handle ? opts.handle : '')) || '.grid-stack-item-content',
+                handle: (opts.handleClass ? '.' + opts.handleClass : (opts.handle ? opts.handle : '')) ||
+                    '.grid-stack-item-content',
                 scroll: false,
                 appendTo: 'body'
             })
         });
-        this.opts.is_nested = is_nested;
+        this.opts.isNested = isNested;
 
-        this.cell_height(this.opts.cell_height, true);
-        this.vertical_margin(this.opts.vertical_margin, true);
+        this.cellHeight(this.opts.cellHeight, true);
+        this.verticalMargin(this.opts.verticalMargin, true);
 
         this.container.addClass(this.opts._class);
 
-        this._set_static_class();
+        this._setStaticClass();
 
-        if (is_nested) {
+        if (isNested) {
             this.container.addClass('grid-stack-nested');
         }
 
-        this._init_styles();
+        this._initStyles();
 
         this.grid = new GridStackEngine(this.opts.width, function(nodes) {
-            var max_height = 0;
+            var maxHeight = 0;
             _.each(nodes, function(n) {
-                if (n._id == null) {
+                if (n._id === null) {
                     n.el.remove();
-                }
-                else {
+                } else {
                     n.el
                         .attr('data-gs-x', n.x)
                         .attr('data-gs-y', n.y)
                         .attr('data-gs-width', n.width)
                         .attr('data-gs-height', n.height);
-                    max_height = Math.max(max_height, n.y + n.height);
+                    maxHeight = Math.max(maxHeight, n.y + n.height);
                 }
             });
-            self._update_styles(max_height + 10);
+            self._updateStyles(maxHeight + 10);
         }, this.opts.float, this.opts.height);
 
         if (this.opts.auto) {
             var elements = [];
             var _this = this;
-            this.container.children('.' + this.opts.item_class + ':not(.' + this.opts.placeholder_class + ')').each(function(index, el) {
+            this.container.children('.' + this.opts.itemClass + ':not(.' + this.opts.placeholderClass + ')')
+                .each(function(index, el) {
                 el = $(el);
                 elements.push({
                     el: el,
@@ -468,67 +555,68 @@
                 });
             });
             _.chain(elements).sortBy(function(x) { return x.i; }).each(function(i) {
-                self._prepare_element(i.el);
+                self._prepareElement(i.el);
             }).value();
         }
 
-        this.set_animation(this.opts.animate);
+        this.setAnimation(this.opts.animate);
 
         this.placeholder = $(
-            '<div class="' + this.opts.placeholder_class + ' ' + this.opts.item_class + '">' +
-            '<div class="placeholder-content">' + this.opts.placeholder_text + '</div></div>').hide();
+            '<div class="' + this.opts.placeholderClass + ' ' + this.opts.itemClass + '">' +
+            '<div class="placeholder-content">' + this.opts.placeholderText + '</div></div>').hide();
 
-        this._update_container_height();
+        this._updateContainerHeight();
 
-        this.on_resize_handler = function() {
-            if (self._is_one_column_mode()) {
-                if (one_column_mode)
+        this.onResizeHandler = function() {
+            if (self._isOneColumnMode()) {
+                if (oneColumnMode) {
                     return;
+                }
 
-                one_column_mode = true;
+                oneColumnMode = true;
 
-                self.grid._sort_nodes();
+                self.grid._sortNodes();
                 _.each(self.grid.nodes, function(node) {
                     self.container.append(node.el);
 
-                    if (self.opts.static_grid) {
+                    if (self.opts.staticGrid) {
                         return;
                     }
-                    if (!node.no_move) {
+                    if (!node.noMove) {
                         node.el.draggable('disable');
                     }
-                    if (!node.no_resize) {
+                    if (!node.noResize) {
                         node.el.resizable('disable');
                     }
                 });
-            }
-            else {
-                if (!one_column_mode)
+            } else {
+                if (!oneColumnMode) {
                     return;
+                }
 
-                one_column_mode = false;
+                oneColumnMode = false;
 
-                if (self.opts.static_grid) {
+                if (self.opts.staticGrid) {
                     return;
                 }
 
                 _.each(self.grid.nodes, function(node) {
-                    if (!node.no_move) {
+                    if (!node.noMove) {
                         node.el.draggable('enable');
                     }
-                    if (!node.no_resize) {
+                    if (!node.noResize) {
                         node.el.resizable('enable');
                     }
                 });
             }
         };
 
-        $(window).resize(this.on_resize_handler);
-        this.on_resize_handler();
+        $(window).resize(this.onResizeHandler);
+        this.onResizeHandler();
     };
 
-    GridStack.prototype._trigger_change_event = function(forceTrigger) {
-        var elements = this.grid.get_dirty_nodes();
+    GridStack.prototype._triggerChangeEvent = function(forceTrigger) {
+        var elements = this.grid.getDirtyNodes();
         var hasChanges = false;
 
         var eventParams = [];
@@ -542,162 +630,165 @@
         }
     };
 
-    GridStack.prototype._init_styles = function() {
-        if (!this.opts.cell_height) { //that will be handled by CSS
+    GridStack.prototype._initStyles = function() {
+        if (!this.opts.cellHeight) { //that will be handled by CSS
             return ;
         }
-        if (this._styles_id) {
-            $('[data-gs-id="' + this._styles_id + '"]').remove();
+        if (this._stylesId) {
+            $('[data-gs-id="' + this._stylesId + '"]').remove();
         }
-        this._styles_id = 'gridstack-style-' + (Math.random() * 100000).toFixed();
-        this._styles = Utils.create_stylesheet(this._styles_id);
-        if (this._styles != null)
+        this._stylesId = 'gridstack-style-' + (Math.random() * 100000).toFixed();
+        this._styles = Utils.createStylesheet(this._stylesId);
+        if (this._styles != null) {
             this._styles._max = 0;
+        }
     };
 
-    GridStack.prototype._update_styles = function(max_height) {
-        if (this._styles == null) {
+    GridStack.prototype._updateStyles = function(maxHeight) {
+        if (this._styles === null) {
             return;
         }
 
-        var prefix = '.' + this.opts._class + ' .' + this.opts.item_class,
-            self = this,
-            get_height
-        ;
+        var prefix = '.' + this.opts._class + ' .' + this.opts.itemClass;
+        var self = this;
+        var getHeight;
 
-        if (typeof max_height == 'undefined') {
-            max_height = this._styles._max;
-            this._init_styles();
-            this._update_container_height();
+        if (typeof maxHeight == 'undefined') {
+            maxHeight = this._styles._max;
+            this._initStyles();
+            this._updateContainerHeight();
         }
-
-        if (!this.opts.cell_height) { //the rest will be handled by CSS
+        if (!this.opts.cellHeight) { //the rest will be handled by CSS
             return ;
         }
-        if (this._styles._max !== 0 && max_height <= this._styles._max) {
+        if (this._styles._max !== 0 && maxHeight <= this._styles._max) {
             return ;
         }
 
-        if (!this.opts.vertical_margin || this.opts.cell_height_unit === this.opts.vertical_margin_unit) {
-            get_height = function (nbRows, nbMargins) {
-                return (self.opts.cell_height * nbRows + self.opts.vertical_margin * nbMargins) + self.opts.cell_height_unit;
-            }
+        if (!this.opts.verticalMargin || this.opts.cellHeightUnit === this.opts.verticalMarginUnit) {
+            getHeight = function(nbRows, nbMargins) {
+                return (self.opts.cellHeight * nbRows + self.opts.verticalMargin * nbMargins) + self.opts.cellHeightUnit;
+            };
         } else {
-            get_height = function (nbRows, nbMargins) {
+            getHeight = function(nbRows, nbMargins) {
                 if (!nbRows || !nbMargins) {
-                    return (self.opts.cell_height * nbRows + self.opts.vertical_margin * nbMargins) + self.opts.cell_height_unit;
+                    return (self.opts.cellHeight * nbRows + self.opts.verticalMargin * nbMargins) + self.opts.cellHeightUnit;
                 }
-                return 'calc(' + ((self.opts.cell_height * nbRows) + self.opts.cell_height_unit) + ' + ' + ((self.opts.vertical_margin * nbMargins) + self.opts.vertical_margin_unit) + ')';
-            }
+                return 'calc(' + ((self.opts.cellHeight * nbRows) + self.opts.cellHeightUnit) + ' + ' +
+                    ((self.opts.verticalMargin * nbMargins) + self.opts.verticalMarginUnit) + ')';
+            };
         }
 
-        if (this._styles._max == 0) {
-            Utils.insert_css_rule(this._styles, prefix, 'min-height: ' + get_height(1, 0) + ';', 0);
+        if (this._styles._max === 0) {
+            Utils.insertCSSRule(this._styles, prefix, 'min-height: ' + getHeight(1, 0) + ';', 0);
         }
 
-        if (max_height > this._styles._max) {
-            for (var i = this._styles._max; i < max_height; ++i) {
-                Utils.insert_css_rule(this._styles,
+        if (maxHeight > this._styles._max) {
+            for (var i = this._styles._max; i < maxHeight; ++i) {
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-height="' + (i + 1) + '"]',
-                    'height: ' + get_height(i + 1, i) + ';',
+                    'height: ' + getHeight(i + 1, i) + ';',
                     i
                 );
-                Utils.insert_css_rule(this._styles,
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-min-height="' + (i + 1) + '"]',
-                    'min-height: ' + get_height(i + 1, i) + ';',
+                    'min-height: ' + getHeight(i + 1, i) + ';',
                     i
                 );
-                Utils.insert_css_rule(this._styles,
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-max-height="' + (i + 1) + '"]',
-                    'max-height: ' + get_height(i + 1, i) + ';',
+                    'max-height: ' + getHeight(i + 1, i) + ';',
                     i
                 );
-                Utils.insert_css_rule(this._styles,
+                Utils.insertCSSRule(this._styles,
                     prefix + '[data-gs-y="' + i + '"]',
-                    'top: ' + get_height(i, i) + ';',
+                    'top: ' + getHeight(i, i) + ';',
                     i
                 );
             }
-            this._styles._max = max_height;
+            this._styles._max = maxHeight;
         }
     };
 
-    GridStack.prototype._update_container_height = function() {
-        if (this.grid._update_counter) {
+    GridStack.prototype._updateContainerHeight = function() {
+        if (this.grid._updateCounter) {
             return;
         }
-        var height = this.grid.get_grid_height();
+        var height = this.grid.getGridHeight();
         this.container.attr('data-gs-current-height', height);
-        if (!this.opts.cell_height) {
+        if (!this.opts.cellHeight) {
             return ;
         }
-        if (!this.opts.vertical_margin) {
-            this.container.css('height', (height * (this.opts.cell_height)) + this.opts.cell_height_unit);
-        } else if (this.opts.cell_height_unit === this.opts.vertical_margin_unit) {
-            this.container.css('height', (height * (this.opts.cell_height + this.opts.vertical_margin) - this.opts.vertical_margin) + this.opts.cell_height_unit);
+        if (!this.opts.verticalMargin) {
+            this.container.css('height', (height * (this.opts.cellHeight)) + this.opts.cellHeightUnit);
+        } else if (this.opts.cellHeightUnit === this.opts.verticalMarginUnit) {
+            this.container.css('height', (height * (this.opts.cellHeight + this.opts.verticalMargin) -
+                this.opts.verticalMargin) + this.opts.cellHeightUnit);
         } else {
-            this.container.css('height', 'calc(' + ((height * (this.opts.cell_height)) + this.opts.cell_height_unit) + ' + ' + ((height * (this.opts.vertical_margin - 1)) + this.opts.vertical_margin_unit) + ')');
+            this.container.css('height', 'calc(' + ((height * (this.opts.cellHeight)) + this.opts.cellHeightUnit) +
+                ' + ' + ((height * (this.opts.verticalMargin - 1)) + this.opts.verticalMarginUnit) + ')');
         }
     };
 
-    GridStack.prototype._is_one_column_mode = function() {
+    GridStack.prototype._isOneColumnMode = function() {
         return (window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth) <=
-            this.opts.min_width;
+            this.opts.minWidth;
     };
 
-    GridStack.prototype._prepare_element = function(el) {
+    GridStack.prototype._prepareElement = function(el) {
         var self = this;
         el = $(el);
 
-        el.addClass(this.opts.item_class);
-
-        var node = self.grid.add_node({
+        el.addClass(this.opts.itemClass);
+        var node = self.grid.addNode({
             x: el.attr('data-gs-x'),
             y: el.attr('data-gs-y'),
             width: el.attr('data-gs-width'),
             height: el.attr('data-gs-height'),
-            max_width: el.attr('data-gs-max-width'),
-            min_width: el.attr('data-gs-min-width'),
-            max_height: el.attr('data-gs-max-height'),
-            min_height: el.attr('data-gs-min-height'),
-            auto_position: Utils.toBool(el.attr('data-gs-auto-position')),
-            no_resize: Utils.toBool(el.attr('data-gs-no-resize')),
-            no_move: Utils.toBool(el.attr('data-gs-no-move')),
+            maxWidth: el.attr('data-gs-max-width'),
+            minWidth: el.attr('data-gs-min-width'),
+            maxHeight: el.attr('data-gs-max-height'),
+            minHeight: el.attr('data-gs-min-height'),
+            autoPosition: Utils.toBool(el.attr('data-gs-auto-position')),
+            noResize: Utils.toBool(el.attr('data-gs-no-resize')),
+            noMove: Utils.toBool(el.attr('data-gs-no-move')),
             locked: Utils.toBool(el.attr('data-gs-locked')),
             el: el
         });
         el.data('_gridstack_node', node);
 
-        if (self.opts.static_grid) {
+        if (self.opts.staticGrid) {
             return;
         }
 
-        var cell_width, cell_height;
+        var cellWidth;
+        var cellHeight;
 
-        var drag_or_resize = function(event, ui) {
-            var x = Math.round(ui.position.left / cell_width),
-                y = Math.floor((ui.position.top + cell_height / 2) / cell_height),
-                width, height;
-            if (event.type != "drag") {
-                width = Math.round(ui.size.width / cell_width);
-                height = Math.round(ui.size.height / cell_height);
+        var dragOrResize = function(event, ui) {
+            var x = Math.round(ui.position.left / cellWidth);
+            var y = Math.floor((ui.position.top + cellHeight / 2) / cellHeight);
+            var width;
+            var height;
+            if (event.type != 'drag') {
+                width = Math.round(ui.size.width / cellWidth);
+                height = Math.round(ui.size.height / cellHeight);
             }
 
-            if (!self.grid.can_move_node(node, x, y, width, height)) {
+            if (!self.grid.canMoveNode(node, x, y, width, height)) {
                 return;
             }
-            self.grid.move_node(node, x, y, width, height);
-            self._update_container_height();
+            self.grid.moveNode(node, x, y, width, height);
+            self._updateContainerHeight();
         };
 
-        var on_start_moving = function(event, ui) {
+        var onStartMoving = function(event, ui) {
             self.container.append(self.placeholder);
             var o = $(this);
-            self.grid.clean_nodes();
-            self.grid.begin_update(node);
-            cell_width = Math.ceil(o.outerWidth() / o.attr('data-gs-width'));
-            var strict_cell_height = Math.ceil(o.outerHeight() / o.attr('data-gs-height'));
-            cell_height = self.container.height() / parseInt(self.container.attr('data-gs-current-height'));
+            self.grid.cleanNodes();
+            self.grid.beginUpdate(node);
+            cellWidth = Math.ceil(o.outerWidth() / o.attr('data-gs-width'));
+            var strictCellHeight = Math.ceil(o.outerHeight() / o.attr('data-gs-height'));
+            cellHeight = self.container.height() / parseInt(self.container.attr('data-gs-current-height'));
             self.placeholder
                 .attr('data-gs-x', o.attr('data-gs-x'))
                 .attr('data-gs-y', o.attr('data-gs-y'))
@@ -706,15 +797,15 @@
                 .show();
             node.el = self.placeholder;
 
-            el.resizable('option', 'minWidth', cell_width * (node.min_width || 1));
-            el.resizable('option', 'minHeight', strict_cell_height * (node.min_height || 1));
+            el.resizable('option', 'minWidth', cellWidth * (node.minWidth || 1));
+            el.resizable('option', 'minHeight', strictCellHeight * (node.minHeight || 1));
 
             if (event.type == 'resizestart') {
                 o.find('.grid-stack-item').trigger('resizestart');
             }
         };
 
-        var on_end_moving = function(event, ui) {
+        var onEndMoving = function(event, ui) {
             self.placeholder.detach();
             var o = $(this);
             node.el = o;
@@ -725,15 +816,15 @@
                 .attr('data-gs-width', node.width)
                 .attr('data-gs-height', node.height)
                 .removeAttr('style');
-            self._update_container_height();
-            self._trigger_change_event();
+            self._updateContainerHeight();
+            self._triggerChangeEvent();
 
-            self.grid.end_update();
+            self.grid.endUpdate();
 
-            var nested_grids = o.find('.grid-stack');
-            if (nested_grids.length && event.type == 'resizestop') {
-                nested_grids.each(function(index, el) {
-                    $(el).data('gridstack').on_resize_handler();
+            var nestedGrids = o.find('.grid-stack');
+            if (nestedGrids.length && event.type == 'resizestop') {
+                nestedGrids.each(function(index, el) {
+                    $(el).data('gridstack').onResizeHandler();
                 });
                 o.find('.grid-stack-item').trigger('resizestop');
             }
@@ -741,93 +832,94 @@
 
         el
             .draggable(_.extend(this.opts.draggable, {
-                containment: this.opts.is_nested ? this.container.parent() : null,
-                start: on_start_moving,
-                stop: on_end_moving,
-                drag: drag_or_resize
+                containment: this.opts.isNested ? this.container.parent() : null,
+                start: onStartMoving,
+                stop: onEndMoving,
+                drag: dragOrResize
             }))
             .resizable(_.extend(this.opts.resizable, {
-                start: on_start_moving,
-                stop: on_end_moving,
-                resize: drag_or_resize
+                start: onStartMoving,
+                stop: onEndMoving,
+                resize: dragOrResize
             }));
 
-        if (node.no_move || this._is_one_column_mode()) {
+        if (node.noMove || this._isOneColumnMode()) {
             el.draggable('disable');
         }
 
-        if (node.no_resize || this._is_one_column_mode()) {
+        if (node.noResize || this._isOneColumnMode()) {
             el.resizable('disable');
         }
 
         el.attr('data-gs-locked', node.locked ? 'yes' : null);
     };
 
-    GridStack.prototype.set_animation = function(enable) {
+    GridStack.prototype.setAnimation = function(enable) {
         if (enable) {
             this.container.addClass('grid-stack-animate');
-        }
-        else {
+        } else {
             this.container.removeClass('grid-stack-animate');
         }
     };
 
-    GridStack.prototype.add_widget = function(el, x, y, width, height, auto_position) {
+    GridStack.prototype.addWidget = function(el, x, y, width, height, autoPosition) {
         el = $(el);
-        if (typeof x != 'undefined') el.attr('data-gs-x', x);
-        if (typeof y != 'undefined') el.attr('data-gs-y', y);
-        if (typeof width != 'undefined') el.attr('data-gs-width', width);
-        if (typeof height != 'undefined') el.attr('data-gs-height', height);
-        if (typeof auto_position != 'undefined') el.attr('data-gs-auto-position', auto_position ? 'yes' : null);
+        if (typeof x != 'undefined') { el.attr('data-gs-x', x); }
+        if (typeof y != 'undefined') { el.attr('data-gs-y', y); }
+        if (typeof width != 'undefined') { el.attr('data-gs-width', width); }
+        if (typeof height != 'undefined') { el.attr('data-gs-height', height); }
+        if (typeof autoPosition != 'undefined') { el.attr('data-gs-auto-position', autoPosition ? 'yes' : null); }
         this.container.append(el);
-        this._prepare_element(el);
-        this._update_container_height();
-        this._trigger_change_event(true);
+        this._prepareElement(el);
+        this._updateContainerHeight();
+        this._triggerChangeEvent(true);
 
         return el;
     };
 
-    GridStack.prototype.make_widget = function(el) {
+    GridStack.prototype.makeWidget = function(el) {
         el = $(el);
-        this._prepare_element(el);
-        this._update_container_height();
-        this._trigger_change_event(true);
+        this._prepareElement(el);
+        this._updateContainerHeight();
+        this._triggerChangeEvent(true);
 
         return el;
     };
 
-    GridStack.prototype.will_it_fit = function(x, y, width, height, auto_position) {
-        var node = {x: x, y: y, width: width, height: height, auto_position: auto_position};
-        return this.grid.can_be_placed_with_respect_to_height(node);
+    GridStack.prototype.willItFit = function(x, y, width, height, autoPosition) {
+        var node = {x: x, y: y, width: width, height: height, autoPosition: autoPosition};
+        return this.grid.canBePlacedWithRespectToHeight(node);
     };
 
-    GridStack.prototype.remove_widget = function(el, detach_node) {
-        detach_node = typeof detach_node === 'undefined' ? true : detach_node;
+    GridStack.prototype.removeWidget = function(el, detachNode) {
+        detachNode = typeof detachNode === 'undefined' ? true : detachNode;
         el = $(el);
         var node = el.data('_gridstack_node');
-        this.grid.remove_node(node);
+        this.grid.removeNode(node);
         el.removeData('_gridstack_node');
-        this._update_container_height();
-        if (detach_node)
+        this._updateContainerHeight();
+        if (detachNode) {
             el.remove();
-        this._trigger_change_event(true);
+        }
+        this._triggerChangeEvent(true);
     };
 
-    GridStack.prototype.remove_all = function(detach_node) {
+    GridStack.prototype.removeAll = function(detachNode) {
         _.each(this.grid.nodes, _.bind(function(node) {
-            this.remove_widget(node.el, detach_node);
+            this.removeWidget(node.el, detachNode);
         }, this));
         this.grid.nodes = [];
-        this._update_container_height();
+        this._updateContainerHeight();
     };
 
     GridStack.prototype.destroy = function() {
-        $(window).off("resize", this.on_resize_handler);
+        $(window).off('resize', this.onResizeHandler);
         this.disable();
         this.container.remove();
-        Utils.remove_stylesheet(this._styles_id);
-        if (this.grid)
+        Utils.removeStylesheet(this._stylesId);
+        if (this.grid) {
             this.grid = null;
+        }
     };
 
     GridStack.prototype.resizable = function(el, val) {
@@ -836,15 +928,14 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node == null) {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
-            node.no_resize = !(val || false);
-            if (node.no_resize || self._is_one_column_mode()) {
+            node.noResize = !(val || false);
+            if (node.noResize || self._isOneColumnMode()) {
                 el.resizable('disable');
-            }
-            else {
+            } else {
                 el.resizable('enable');
             }
         });
@@ -857,16 +948,15 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node == null) {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
-            node.no_move = !(val || false);
-            if (node.no_move || self._is_one_column_mode()) {
+            node.noMove = !(val || false);
+            if (node.noMove || self._isOneColumnMode()) {
                 el.draggable('disable');
                 el.removeClass('ui-draggable-handle');
-            }
-            else {
+            } else {
                 el.draggable('enable');
                 el.addClass('ui-draggable-handle');
             }
@@ -875,14 +965,14 @@
     };
 
     GridStack.prototype.disable = function() {
-        this.movable(this.container.children('.' + this.opts.item_class), false);
-        this.resizable(this.container.children('.' + this.opts.item_class), false);
+        this.movable(this.container.children('.' + this.opts.itemClass), false);
+        this.resizable(this.container.children('.' + this.opts.itemClass), false);
         this.container.trigger('disable');
     };
 
     GridStack.prototype.enable = function() {
-        this.movable(this.container.children('.' + this.opts.item_class), true);
-        this.resizable(this.container.children('.' + this.opts.item_class), true);
+        this.movable(this.container.children('.' + this.opts.itemClass), true);
+        this.resizable(this.container.children('.' + this.opts.itemClass), true);
         this.container.trigger('enable');
     };
 
@@ -891,7 +981,7 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node == null) {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
@@ -901,188 +991,302 @@
         return this;
     };
 
-    GridStack.prototype.min_height = function (el, val) {
+    GridStack.prototype.maxHeight = function(el, val) {
         el = $(el);
-        el.each(function (index, el) {
+        el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
             if (typeof node == 'undefined' || node == null) {
                 return;
             }
 
-            if(!isNaN(val)){
-                node.min_height = (val || false);
+            if (!isNaN(val)) {
+                node.maxHeight = (val || false);
+                el.attr('data-gs-max-height', val);
+            }
+        });
+        return this;
+    };
+
+    GridStack.prototype.minHeight = function(el, val) {
+        el = $(el);
+        el.each(function(index, el) {
+            el = $(el);
+            var node = el.data('_gridstack_node');
+            if (typeof node == 'undefined' || node == null) {
+                return;
+            }
+
+            if (!isNaN(val)) {
+                node.minHeight = (val || false);
                 el.attr('data-gs-min-height', val);
             }
         });
         return this;
     };
 
-    GridStack.prototype.min_width = function (el, val) {
+    GridStack.prototype.maxWidth = function(el, val) {
         el = $(el);
-        el.each(function (index, el) {
+        el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
             if (typeof node == 'undefined' || node == null) {
                 return;
             }
 
-            if(!isNaN(val)){
-                node.min_width = (val || false);
+            if (!isNaN(val)) {
+                node.maxWidth = (val || false);
+                el.attr('data-gs-max-width', val);
+            }
+        });
+        return this;
+    };
+
+    GridStack.prototype.minWidth = function(el, val) {
+        el = $(el);
+        el.each(function(index, el) {
+            el = $(el);
+            var node = el.data('_gridstack_node');
+            if (typeof node == 'undefined' || node == null) {
+                return;
+            }
+
+            if (!isNaN(val)) {
+                node.minWidth = (val || false);
                 el.attr('data-gs-min-width', val);
             }
         });
         return this;
     };
 
-    GridStack.prototype._update_element = function(el, callback) {
+    GridStack.prototype._updateElement = function(el, callback) {
         el = $(el).first();
         var node = el.data('_gridstack_node');
-        if (typeof node == 'undefined' || node == null) {
+        if (typeof node == 'undefined' || node === null) {
             return;
         }
 
         var self = this;
 
-        self.grid.clean_nodes();
-        self.grid.begin_update(node);
+        self.grid.cleanNodes();
+        self.grid.beginUpdate(node);
 
         callback.call(this, el, node);
 
-        self._update_container_height();
-        self._trigger_change_event();
+        self._updateContainerHeight();
+        self._triggerChangeEvent();
 
-        self.grid.end_update();
+        self.grid.endUpdate();
     };
 
     GridStack.prototype.resize = function(el, width, height) {
-        this._update_element(el, function(el, node) {
-            width = (width != null && typeof width != 'undefined') ? width : node.width;
-            height = (height != null && typeof height != 'undefined') ? height : node.height;
+        this._updateElement(el, function(el, node) {
+            width = (width !== null && typeof width != 'undefined') ? width : node.width;
+            height = (height !== null && typeof height != 'undefined') ? height : node.height;
 
-            this.grid.move_node(node, node.x, node.y, width, height);
+            this.grid.moveNode(node, node.x, node.y, width, height);
         });
     };
 
     GridStack.prototype.move = function(el, x, y) {
-        this._update_element(el, function(el, node) {
-            x = (x != null && typeof x != 'undefined') ? x : node.x;
-            y = (y != null && typeof y != 'undefined') ? y : node.y;
+        this._updateElement(el, function(el, node) {
+            x = (x !== null && typeof x != 'undefined') ? x : node.x;
+            y = (y !== null && typeof y != 'undefined') ? y : node.y;
 
-            this.grid.move_node(node, x, y, node.width, node.height);
+            this.grid.moveNode(node, x, y, node.width, node.height);
         });
     };
 
     GridStack.prototype.update = function(el, x, y, width, height) {
-        this._update_element(el, function(el, node) {
-            x = (x != null && typeof x != 'undefined') ? x : node.x;
-            y = (y != null && typeof y != 'undefined') ? y : node.y;
-            width = (width != null && typeof width != 'undefined') ? width : node.width;
-            height = (height != null && typeof height != 'undefined') ? height : node.height;
+        this._updateElement(el, function(el, node) {
+            x = (x !== null && typeof x != 'undefined') ? x : node.x;
+            y = (y !== null && typeof y != 'undefined') ? y : node.y;
+            width = (width !== null && typeof width != 'undefined') ? width : node.width;
+            height = (height !== null && typeof height != 'undefined') ? height : node.height;
 
-            this.grid.move_node(node, x, y, width, height);
+            this.grid.moveNode(node, x, y, width, height);
         });
     };
 
     function parseHeight(val) {
         var height = val;
-        var height_unit = 'px';
+        var heightUnit = 'px';
         if (height && _.isString(height)) {
             var match = height.match(/^([0-9]+)(px|em|rem)?$/);
             if (!match) {
                 throw new Error('Invalid height');
             }
-            height_unit = match[2];
+            heightUnit = match[2];
             height = parseInt(match[1]);
         }
-        return {height: height, unit: height_unit};
+        return {height: height, unit: heightUnit};
     }
 
-    GridStack.prototype.vertical_margin = function (val, noUpdate) {
+    GridStack.prototype.verticalMargin = function(val, noUpdate) {
         if (typeof val == 'undefined') {
-            return this.opts.vertical_margin;
+            return this.opts.verticalMargin;
         }
 
         var heightData = parseHeight(val);
 
-        if (this.opts.vertical_margin_unit === heightData.unit && this.opts.height === heightData.height) {
+        if (this.opts.verticalMarginUnit === heightData.unit && this.opts.height === heightData.height) {
             return ;
         }
-        this.opts.vertical_margin_unit = heightData.unit;
-        this.opts.vertical_margin = heightData.height;
+        this.opts.verticalMarginUnit = heightData.unit;
+        this.opts.verticalMargin = heightData.height;
 
         if (!noUpdate) {
-            this._update_styles();
+            this._updateStyles();
         }
     };
 
-    GridStack.prototype.cell_height = function (val, noUpdate) {
+    GridStack.prototype.cellHeight = function(val, noUpdate) {
         if (typeof val == 'undefined') {
-            if (this.opts.cell_height) {
-                return this.opts.cell_height;
+            if (this.opts.cellHeight) {
+                return this.opts.cellHeight;
             } else {
-                var o = this.container.children('.' + this.opts.item_class).first();
+                var o = this.container.children('.' + this.opts.itemClass).first();
                 return Math.ceil(o.outerHeight() / o.attr('data-gs-height'));
             }
-        }
 
+        }
         var heightData = parseHeight(val);
 
-        if (this.opts.cell_height_unit === heightData.height_unit && this.opts.height === heightData.height) {
+        if (this.opts.cellHeightUnit === heightData.heightUnit && this.opts.height === heightData.height) {
             return ;
         }
-        this.opts.cell_height_unit = heightData.unit;
-        this.opts.cell_height = heightData.height;
+        this.opts.cellHeightUnit = heightData.unit;
+        this.opts.cellHeight = heightData.height;
 
         if (!noUpdate) {
-            this._update_styles();
+            this._updateStyles();
         }
+
     };
 
-    GridStack.prototype.cell_width = function() {
-        var o = this.container.children('.' + this.opts.item_class).first();
+    GridStack.prototype.cellWidth = function() {
+        var o = this.container.children('.' + this.opts.itemClass).first();
         return Math.ceil(o.outerWidth() / o.attr('data-gs-width'));
     };
 
-    GridStack.prototype.get_cell_from_pixel = function(position) {
+    GridStack.prototype.getCellFromPixel = function(position) {
         var containerPos = this.container.position();
         var relativeLeft = position.left - containerPos.left;
         var relativeTop = position.top - containerPos.top;
 
-        var column_width = Math.floor(this.container.width() / this.opts.width);
-        var row_height = Math.floor(this.container.height() / parseInt(this.container.attr('data-gs-current-height')));
+        var columnWidth = Math.floor(this.container.width() / this.opts.width);
+        var rowHeight = Math.floor(this.container.height() / parseInt(this.container.attr('data-gs-current-height')));
 
-        return {x: Math.floor(relativeLeft / column_width), y: Math.floor(relativeTop / row_height)};
+        return {x: Math.floor(relativeLeft / columnWidth), y: Math.floor(relativeTop / rowHeight)};
     };
 
-    GridStack.prototype.batch_update = function() {
-        this.grid.batch_update();
+    GridStack.prototype.batchUpdate = function() {
+        this.grid.batchUpdate();
     };
 
     GridStack.prototype.commit = function() {
         this.grid.commit();
-        this._update_container_height();
+        this._updateContainerHeight();
     };
 
-    GridStack.prototype.is_area_empty = function(x, y, width, height) {
-        return this.grid.is_area_empty(x, y, width, height);
+    GridStack.prototype.isAreaEmpty = function(x, y, width, height) {
+        return this.grid.isAreaEmpty(x, y, width, height);
     };
 
-    GridStack.prototype.set_static = function(static_value) {
-        this.opts.static_grid = (static_value === true);
-        this._set_static_class();
+    GridStack.prototype.setStatic = function(staticValue) {
+        this.opts.staticGrid = (staticValue === true);
+        this._setStaticClass();
     };
 
-    GridStack.prototype._set_static_class = function() {
-        var static_class_name = 'grid-stack-static';
+    GridStack.prototype._setStaticClass = function() {
+        var staticClassName = 'grid-stack-static';
 
-        if (this.opts.static_grid === true) {
-            this.container.addClass(static_class_name);
+        if (this.opts.staticGrid === true) {
+            this.container.addClass(staticClassName);
         } else {
-            this.container.removeClass(static_class_name);
+            this.container.removeClass(staticClassName);
         }
     };
 
+    // jscs:disable requireCamelCaseOrUpperCaseIdentifiers
+    GridStackEngine.prototype.batch_update = obsolete(GridStackEngine.prototype.batchUpdate);
+    GridStackEngine.prototype._fix_collisions = obsolete(GridStackEngine.prototype._fixCollisions,
+        '_fix_collisions', '_fixCollisions');
+    GridStackEngine.prototype.is_area_empty = obsolete(GridStackEngine.prototype.isAreaEmpty,
+        'is_area_empty', 'isAreaEmpty');
+    GridStackEngine.prototype._sort_nodes = obsolete(GridStackEngine.prototype._sortNodes,
+        '_sort_nodes', '_sortNodes');
+    GridStackEngine.prototype._pack_nodes = obsolete(GridStackEngine.prototype._packNodes,
+        '_pack_nodes', '_packNodes');
+    GridStackEngine.prototype._prepare_node = obsolete(GridStackEngine.prototype._prepareNode,
+        '_prepare_node', '_prepareNode');
+    GridStackEngine.prototype.clean_nodes = obsolete(GridStackEngine.prototype.cleanNodes,
+        'clean_nodes', 'cleanNodes');
+    GridStackEngine.prototype.get_dirty_nodes = obsolete(GridStackEngine.prototype.getDirtyNodes,
+        'get_dirty_nodes', 'getDirtyNodes');
+    GridStackEngine.prototype.add_node = obsolete(GridStackEngine.prototype.addNode,
+        'add_node', 'addNode, ');
+    GridStackEngine.prototype.remove_node = obsolete(GridStackEngine.prototype.removeNode,
+        'remove_node', 'removeNode');
+    GridStackEngine.prototype.can_move_node = obsolete(GridStackEngine.prototype.canMoveNode,
+        'can_move_node', 'canMoveNode');
+    GridStackEngine.prototype.move_node = obsolete(GridStackEngine.prototype.moveNode,
+        'move_node', 'moveNode');
+    GridStackEngine.prototype.get_grid_height = obsolete(GridStackEngine.prototype.getGridHeight,
+        'get_grid_height', 'getGridHeight');
+    GridStackEngine.prototype.begin_update = obsolete(GridStackEngine.prototype.beginUpdate,
+        'begin_update', 'beginUpdate');
+    GridStackEngine.prototype.end_update = obsolete(GridStackEngine.prototype.endUpdate,
+        'end_update', 'endUpdate');
+    GridStackEngine.prototype.can_be_placed_with_respect_to_height =
+        obsolete(GridStackEngine.prototype.canBePlacedWithRespectToHeight,
+        'can_be_placed_with_respect_to_height', 'canBePlacedWithRespectToHeight');
+    GridStack.prototype._trigger_change_event = obsolete(GridStack.prototype._triggerChangeEvent,
+        '_trigger_change_event', '_triggerChangeEvent');
+    GridStack.prototype._init_styles = obsolete(GridStack.prototype._initStyles,
+        '_init_styles', '_initStyles');
+    GridStack.prototype._update_styles = obsolete(GridStack.prototype._updateStyles,
+        '_update_styles', '_updateStyles');
+    GridStack.prototype._update_container_height = obsolete(GridStack.prototype._updateContainerHeight,
+        '_update_container_height', '_updateContainerHeight');
+    GridStack.prototype._is_one_column_mode = obsolete(GridStack.prototype._isOneColumnMode,
+        '_is_one_column_mode',' _isOneColumnMode');
+    GridStack.prototype._prepare_element = obsolete(GridStack.prototype._prepareElement,
+        '_prepare_element', '_prepareElement');
+    GridStack.prototype.set_animation = obsolete(GridStack.prototype.setAnimation,
+        'set_animation', 'setAnimation');
+    GridStack.prototype.add_widget = obsolete(GridStack.prototype.addWidget,
+        'add_widget', 'addWidget');
+    GridStack.prototype.make_widget = obsolete(GridStack.prototype.makeWidget,
+        'make_widget', 'makeWidget');
+    GridStack.prototype.will_it_fit = obsolete(GridStack.prototype.willItFit,
+        'will_it_fit', 'willItFit');
+    GridStack.prototype.remove_widget = obsolete(GridStack.prototype.removeWidget,
+        'remove_widget', 'removeWidget');
+    GridStack.prototype.remove_all = obsolete(GridStack.prototype.removeAll,
+        'remove_all', 'removeAll');
+    GridStack.prototype.min_height = obsolete(GridStack.prototype.minHeight,
+        'min_height', 'minHeight');
+    GridStack.prototype.min_width = obsolete(GridStack.prototype.minWidth,
+        'min_width', 'minWidth');
+    GridStack.prototype._update_element = obsolete(GridStack.prototype._updateElement,
+        '_update_element', '_updateElement');
+    GridStack.prototype.cell_height = obsolete(GridStack.prototype.cellHeight,
+        'cell_height', 'cellHeight');
+    GridStack.prototype.cell_width = obsolete(GridStack.prototype.cellWidth,
+        'cell_width', 'cellWidth');
+    GridStack.prototype.get_cell_from_pixel = obsolete(GridStack.prototype.getCellFromPixel,
+        'get_cell_from_pixel', 'getCellFromPixel');
+    GridStack.prototype.batch_update = obsolete(GridStack.prototype.batchUpdate,
+        'batch_update', 'batchUpdate');
+    GridStack.prototype.is_area_empty = obsolete(GridStack.prototype.isAreaEmpty,
+        'is_area_empty', 'isAreaEmpty');
+    GridStack.prototype.set_static = obsolete(GridStack.prototype.setStatic,
+        'set_static', 'setStatic');
+    GridStack.prototype._set_static_class = obsolete(GridStack.prototype._setStaticClass,
+        '_set_static_class', '_setStaticClass');
+    // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
+
     scope.GridStackUI = GridStack;
 
     scope.GridStackUI.Utils = Utils;