diff --git a/Mage/Command/BuiltIn/DeployCommand.php b/Mage/Command/BuiltIn/DeployCommand.php
index 84720f5..5f4f39c 100644
--- a/Mage/Command/BuiltIn/DeployCommand.php
+++ b/Mage/Command/BuiltIn/DeployCommand.php
@@ -310,7 +310,11 @@ class DeployCommand extends AbstractCommand implements RequiresEnvironment
     			    case 'targz':
     			    	$deployStrategy = 'deployment/strategy/tar-gz';
     			    	break;
-
+                            
+                            case 'git-rebase':
+    			    	$deployStrategy = 'deployment/strategy/git-rebase';
+    			    	break;
+                            
     			    case 'guess':
     			    default:
     			    	if ($this->getConfig()->release('enabled', false) == true) {
diff --git a/Mage/Command/BuiltIn/UpgradeCommand.php b/Mage/Command/BuiltIn/UpgradeCommand.php
index 330f056..25907bc 100644
--- a/Mage/Command/BuiltIn/UpgradeCommand.php
+++ b/Mage/Command/BuiltIn/UpgradeCommand.php
@@ -54,7 +54,7 @@ class UpgradeCommand extends AbstractCommand
         	// Check version
         	$version = json_decode(file_get_contents(self::UPGRADE));
 
-        	if ($version !== false) {
+        	if ($version !== false && $version !== null) {
         		$versionCompare = version_compare(MAGALLANES_VERSION, $version->latest);
         		if ($versionCompare == 0) {
         			Console::output('<yellow>SKIP</yellow>', 0, 1);
@@ -94,4 +94,4 @@ class UpgradeCommand extends AbstractCommand
         	}
         }
     }
-}
\ No newline at end of file
+}
diff --git a/Mage/Command/Factory.php b/Mage/Command/Factory.php
index 56b350a..7e6b322 100644
--- a/Mage/Command/Factory.php
+++ b/Mage/Command/Factory.php
@@ -10,7 +10,6 @@
 
 namespace Mage\Command;
 
-use Mage\Command\AbstractCommand;
 use Mage\Config;
 use Mage\Autoload;
 
diff --git a/Mage/Config.php b/Mage/Config.php
index a119886..8329f2d 100644
--- a/Mage/Config.php
+++ b/Mage/Config.php
@@ -10,7 +10,6 @@
 
 namespace Mage;
 
-use Symfony\Component\Yaml\Yaml;
 use Exception;
 
 /**
@@ -341,10 +340,20 @@ class Config
     public function getHostPort()
     {
         $info = explode(':', $this->host);
-        $info[] = $this->deployment('port', '22');
+        $info[] = $this->deployment('port', '22');
         return $info[1];
     }
 
+    /**
+     * Get the general Host Identity File Option
+     *
+     * @return string
+     */
+    public function getHostIdentityFileOption()
+    {
+        return $this->deployment('identity-file') ? ('-i ' . $this->deployment('identity-file') . ' ') : '';
+    }
+    
     /**
      * Get the current Host
      *
@@ -405,7 +414,7 @@ class Config
     	}
 
     	// Global Config
-        $config = $this->getEnvironmentOption('deployment', array());
+        $config = $this->getEnvironmentOption('deployment', array());
         if (isset($config[$option])) {
             if (is_array($default) && ($config[$option] == '')) {
                 return $default;
@@ -424,7 +433,7 @@ class Config
      * @param string $default
      * @return mixed
      */
-    public function release($option, $default = false)
+    public function release($option, $default = false)
     {
     	// Host Config
     	if (is_array($this->hostConfig) && isset($this->hostConfig['releases'])) {
@@ -432,17 +441,17 @@ class Config
     			return $this->hostConfig['releases'][$option];
     		}
     	}
-
-        $config = $this->getEnvironmentOption('releases', array());
+
+        $config = $this->getEnvironmentOption('releases', array());
         if (isset($config[$option])) {
-            if (is_array($default) && ($config[$option] == '')) {
-                return $default;
-            } else {
-                return $config[$option];
-            }
-        } else {
-            return $default;
-        }
+            if (is_array($default) && ($config[$option] == '')) {
+                return $default;
+            } else {
+                return $config[$option];
+            }
+        } else {
+            return $default;
+        }
     }
 
     /**
@@ -496,4 +505,4 @@ class Config
         }
     }
 
-}
\ No newline at end of file
+}
diff --git a/Mage/Console.php b/Mage/Console.php
index 4c5e0a2..293e47f 100644
--- a/Mage/Console.php
+++ b/Mage/Console.php
@@ -10,7 +10,6 @@
 
 namespace Mage;
 
-use Mage\Config;
 use Mage\Command\Factory;
 use Mage\Command\RequiresEnvironment;
 use Mage\Console\Colors;
diff --git a/Mage/Mailer.php b/Mage/Mailer.php
index 48b9fa2..96ec30b 100644
--- a/Mage/Mailer.php
+++ b/Mage/Mailer.php
@@ -10,7 +10,6 @@
 
 namespace Mage;
 
-use Mage\Console;
 
 /**
  * Mailer Helper.
diff --git a/Mage/Task/AbstractTask.php b/Mage/Task/AbstractTask.php
index d6afcec..69ba25f 100644
--- a/Mage/Task/AbstractTask.php
+++ b/Mage/Task/AbstractTask.php
@@ -12,8 +12,6 @@ namespace Mage\Task;
 
 use Mage\Console;
 use Mage\Config;
-use Mage\Task\ErrorWithMessageException;
-use Mage\Task\SkipException;
 use Mage\Task\Releases\IsReleaseAware;
 
 use Exception;
@@ -192,7 +190,7 @@ abstract class AbstractTask
         // if general.yml includes "ssy_needs_tty: true", then add "-t" to the ssh command
         $needs_tty = ($this->getConfig()->general('ssh_needs_tty',false) ? '-t' : '');
 
-        $localCommand = 'ssh ' . $needs_tty . ' -p ' . $this->getConfig()->getHostPort() . ' '
+        $localCommand = 'ssh ' . $this->getConfig()->getHostIdentityFileOption() . $needs_tty . ' -p ' . $this->getConfig()->getHostPort() . ' '
                       . '-q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no '
                       . $this->getConfig()->deployment('user') . '@' . $this->getConfig()->getHostName() . ' '
                       . '"cd ' . rtrim($this->getConfig()->deployment('to'), '/') . $releasesDirectory . ' && '
diff --git a/Mage/Task/BuiltIn/Composer/GenerateAutoload.php b/Mage/Task/BuiltIn/Composer/GenerateAutoload.php
new file mode 100644
index 0000000..00ae10a
--- /dev/null
+++ b/Mage/Task/BuiltIn/Composer/GenerateAutoload.php
@@ -0,0 +1,40 @@
+<?php
+namespace Mage\Task\BuiltIn\Composer;
+
+use Exception;
+use Mage\Task\AbstractTask;
+use Mage\Task\ErrorWithMessageException;
+use Mage\Task\SkipException;
+
+class GenerateAutoload extends AbstractTask
+{
+    /**
+     * Returns the Title of the Task
+     * @return string
+     */
+    public function getName()
+    {
+        return 'Generating autoload files via composer [built-in]';
+    }
+
+    /**
+     * Runs the task
+     *
+     * @return boolean
+     * @throws Exception
+     * @throws ErrorWithMessageException
+     * @throws SkipException
+     */
+    public function run()
+    {
+        $releasesDirectory = $this->getConfig()->release('directory', 'releases');
+        $releasesDirectory = rtrim($this->getConfig()->deployment('to'), '/') . '/' . $releasesDirectory;
+        $currentCopy = $releasesDirectory . '/' . $this->getConfig()->getReleaseId();
+
+        $sharedFolderName = $this->getParameter('shared', 'shared');
+        $sharedFolderName = rtrim($this->getConfig()->deployment('to'), '/') . '/' . $sharedFolderName;
+
+        $composerPath = $this->getParameter('composer', "$sharedFolderName/composer.phar");
+        return $this->runCommandRemote("/usr/bin/env php $composerPath --working-dir=$currentCopy dumpautoload --optimize", $output);
+    }
+}
diff --git a/Mage/Task/BuiltIn/Deployment/ReleaseTask.php b/Mage/Task/BuiltIn/Deployment/ReleaseTask.php
index 7f8fef9..7a149c4 100644
--- a/Mage/Task/BuiltIn/Deployment/ReleaseTask.php
+++ b/Mage/Task/BuiltIn/Deployment/ReleaseTask.php
@@ -59,14 +59,13 @@ class ReleaseTask extends AbstractTask implements IsReleaseAware, SkipOnOverride
             	$command .= ' && '
                           . 'chown -h ' . $userGroup . ' ' . $symlink
                           . ' && '
-                          . 'chown -R ' . $userGroup . ' ' . $currentCopy;
+                          . 'chown -R ' . $userGroup . ' ' . $currentCopy
+                          . ' && '
+                          . 'chown ' . $userGroup . ' ' . $releasesDirectory;
             }
 
             $result = $this->runCommandRemote($command);
 
-            // Set Directory Releases to same owner
-            $result = $this->runCommandRemote('chown ' . $userGroup . ' ' . $releasesDirectory);
-
             return $result;
 
         } else {
@@ -74,4 +73,4 @@ class ReleaseTask extends AbstractTask implements IsReleaseAware, SkipOnOverride
         }
     }
 
-}
\ No newline at end of file
+}
diff --git a/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php b/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
index 56afa57..5bcbd8e 100644
--- a/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
+++ b/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
@@ -34,13 +34,13 @@ class GitRebaseTask extends AbstractTask implements IsReleaseAware
      * @see \Mage\Task\AbstractTask::run()
      */
     public function run()
-    {
-    	$branch = $this->getParameter('branch');
-    	$remote = $this->getParameter('remote');
-
+    {        
+    	$branch = $this->getParameter('branch', 'master');
+    	$remote = $this->getParameter('remote', 'origin');
+                
     	// Fetch Remote
         $command = 'git fetch ' . $remote;
-        $result = $this->runCommandRemote($command) && $result;
+        $result = $this->runCommandRemote($command);
 
         // Checkout
         $command = 'git checkout ' . $branch;
diff --git a/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php b/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php
index ead532c..74af0ea 100644
--- a/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php
+++ b/Mage/Task/BuiltIn/Deployment/Strategy/RsyncTask.php
@@ -94,7 +94,7 @@ class RsyncTask extends AbstractTask implements IsReleaseAware
         }
 
         $command = 'rsync -avz '
-                 . '--rsh="ssh -p' . $this->getConfig()->getHostPort() . '" '
+                 . '--rsh="ssh ' . $this->getConfig()->getHostIdentityFileOption() . '-p' . $this->getConfig()->getHostPort() . '" '
                  . $this->excludes(array_merge($excludes, $userExcludes)) . ' '
                  . $this->getConfig()->deployment('from') . ' '
                  . $this->getConfig()->deployment('user') . '@' . $this->getConfig()->getHostName() . ':' . $deployToDirectory;
diff --git a/Mage/Task/BuiltIn/Deployment/Strategy/TarGzTask.php b/Mage/Task/BuiltIn/Deployment/Strategy/TarGzTask.php
index aa23c70..e1b6477 100644
--- a/Mage/Task/BuiltIn/Deployment/Strategy/TarGzTask.php
+++ b/Mage/Task/BuiltIn/Deployment/Strategy/TarGzTask.php
@@ -89,7 +89,7 @@ class TarGzTask extends AbstractTask implements IsReleaseAware
         $result = $this->runCommandLocal($command);
 
         // Copy Tar Gz  to Remote Host
-        $command = 'scp -P ' . $this->getConfig()->getHostPort() . ' ' . $localTarGz . '.tar.gz '
+        $command = 'scp ' . $this->getConfig()->getHostIdentityFileOption() . '-P ' . $this->getConfig()->getHostPort() . ' ' . $localTarGz . '.tar.gz '
                  . $this->getConfig()->deployment('user') . '@' . $this->getConfig()->getHostName() . ':' . $deployToDirectory;
         $result = $this->runCommandLocal($command) && $result;
 
diff --git a/Mage/Task/BuiltIn/Filesystem/ApplyFacls.php b/Mage/Task/BuiltIn/Filesystem/ApplyFacls.php
new file mode 100644
index 0000000..3bf73ff
--- /dev/null
+++ b/Mage/Task/BuiltIn/Filesystem/ApplyFacls.php
@@ -0,0 +1,50 @@
+<?php
+namespace Mage\Task\BuiltIn\Filesystem;
+
+use Exception;
+use Mage\Task\AbstractTask;
+use Mage\Task\ErrorWithMessageException;
+use Mage\Task\SkipException;
+use Mage\Task\Releases\IsReleaseAware;
+
+class ApplyFacls extends AbstractTask implements IsReleaseAware
+{
+    /**
+     * Returns the Title of the Task
+     * @return string
+     */
+    public function getName()
+    {
+        return 'Set file ACLs on remote system [built-in]';
+    }
+
+    /**
+     * Runs the task
+     *
+     * @return boolean
+     * @throws Exception
+     * @throws ErrorWithMessageException
+     * @throws SkipException
+     */
+    public function run()
+    {
+        $releasesDirectory = $this->getConfig()->release('directory', 'releases');
+        $releasesDirectory = rtrim($this->getConfig()->deployment('to'), '/') . '/' . $releasesDirectory;
+        $currentCopy = $releasesDirectory . '/' . $this->getConfig()->getReleaseId();
+
+
+        $aclParam = $this->getParameter('acl_param', '');
+        if (empty($aclParam)) {
+            throw new SkipException('Parameter acl_param not set.');
+        }
+
+        $folders = $this->getParameter('folders', []);
+        $recursive = $this->getParameter('recursive', false) ? ' -R ' : ' ';
+
+        foreach ($folders as $folder) {
+            $this->runCommandRemote("setfacl$recursive-m $aclParam $currentCopy/$folder", $output);
+        }
+
+        return true;
+    }
+}
diff --git a/Mage/Task/BuiltIn/Filesystem/LinkSharedFilesTask.php b/Mage/Task/BuiltIn/Filesystem/LinkSharedFilesTask.php
new file mode 100644
index 0000000..9850401
--- /dev/null
+++ b/Mage/Task/BuiltIn/Filesystem/LinkSharedFilesTask.php
@@ -0,0 +1,54 @@
+<?php
+namespace Mage\Task\BuiltIn\Filesystem;
+
+use Mage\Task\AbstractTask;
+use Mage\Task\Releases\IsReleaseAware;
+use Mage\Task\SkipException;
+
+class LinkSharedFilesTask extends AbstractTask implements IsReleaseAware
+{
+
+    /**
+     * Returns the Title of the Task
+     * @return string
+     */
+    public function getName()
+    {
+        return 'Linking files/folders from the shared folder into the current release [built-in]';
+    }
+
+    /**
+     * Runs the task
+     *
+     * @return boolean
+     * @throws Exception
+     * @throws \Mage\Task\ErrorWithMessageException
+     * @throws SkipException
+     */
+    public function run()
+    {
+        $linkedFiles = $this->getParameter('linked_files', []);
+        $linkedFolders = $this->getParameter('linked_folders', []);
+        if (sizeof($linkedFiles) == 0 && sizeof($linkedFolders) == 0) {
+            throw new SkipException('No files and folders configured for sym-linking.');
+        }
+
+        $sharedFolderName = $this->getParameter('shared', 'shared');
+        $sharedFolderName = rtrim($this->getConfig()->deployment('to'), '/') . '/' . $sharedFolderName;
+        $releasesDirectory = $this->getConfig()->release('directory', 'releases');
+        $releasesDirectory = rtrim($this->getConfig()->deployment('to'), '/') . '/' . $releasesDirectory;
+
+        $currentCopy = $releasesDirectory . '/' . $this->getConfig()->getReleaseId();
+        foreach ($linkedFolders as $folder) {
+            $command = "ln -nfs $sharedFolderName/$folder $currentCopy/$folder";
+            $this->runCommandRemote($command);
+        }
+
+        foreach ($linkedFiles as $folder) {
+            $command = "ln -nfs $sharedFolderName/$folder $currentCopy/$folder";
+            $this->runCommandRemote($command);
+        }
+
+        return true;
+    }
+}
diff --git a/Mage/Task/BuiltIn/Scm/ChangeBranchTask.php b/Mage/Task/BuiltIn/Scm/ChangeBranchTask.php
index c585017..7cfa5d5 100644
--- a/Mage/Task/BuiltIn/Scm/ChangeBranchTask.php
+++ b/Mage/Task/BuiltIn/Scm/ChangeBranchTask.php
@@ -63,8 +63,7 @@ class ChangeBranchTask extends AbstractTask
      */
     public function run()
     {
-    	$scmConfig = $this->getConfig()->general('scm', array());
-        switch ((isset($scmConfig['type']) ? $scmConfig['type'] : false)) {
+        switch ($this->getConfig()->general('scm')) {
             case 'git':
             	if ($this->getParameter('_changeBranchRevert', false)) {
             		$command = 'git checkout ' . self::$startingBranch;
diff --git a/Mage/Task/Factory.php b/Mage/Task/Factory.php
index b49c1c9..a8a7066 100644
--- a/Mage/Task/Factory.php
+++ b/Mage/Task/Factory.php
@@ -12,8 +12,6 @@ namespace Mage\Task;
 
 use Mage\Config;
 use Mage\Autoload;
-use Mage\Task\ErrorWithMessageException;
-use Mage\Task\AbstractTask;
 
 use Exception;
 
@@ -29,6 +27,7 @@ class Factory
      *
      * @param string|array $taskData
      * @param \Mage\Config $taskConfig
+     * @param Config $taskConfig
      * @param boolean $inRollback
      * @param string $stage
      * @return \Mage\Task\AbstractTask
@@ -70,4 +69,4 @@ class Factory
 
         return $instance;
     }
-}
\ No newline at end of file
+}