Link plugin prepare updated

example.html

@@ -102,6 +102,7 @@
             link: {
                 type: 'link',
                 iconClassname: 'ce-icon-link',
+                prepare: link.prepare,
                 make: link.makeNewBlock,
                 appendCallback: link.appendCallback,
                 render: link.render,

plugins/link/link.js

@@ -243,7 +243,11 @@ var link = (function(link) {
     };
 
     link.prepare = function (config) {
+
         link.config = config;
+
+        return Promise.resolve();
+
     };
 
     /**