Add .on and .trigger methods to the editor API

bower.json

@@ -1,7 +1,7 @@
 {
   "name": "grapesjs",
   "description": "Open source Web Template Editor",
-  "version": "0.3.2",
+  "version": "0.3.4",
   "author": "Artur Arseniev",
   "homepage": "http://grapesjs.com",
   "main": [

package.json

@@ -1,7 +1,7 @@
 {
   "name": "grapesjs",
   "description": "Open source Web Template Editor",
-  "version": "0.3.2",
+  "version": "0.3.4",
   "author": "Artur Arseniev",
   "license": "BSD-3-Clause",
   "homepage": "http://grapesjs.com",

src/editor/main.js

@@ -325,6 +325,25 @@ define(function (require){
 					return c.el;
 				},
 
+				/**
+				 * Attach event
+				 * @param  {string} event Event name
+				 * @param  {Function} callback Callback function
+				 * @return {this}
+				 */
+				on: function(event, callback){
+					return em.on(event, callback);
+				},
+
+				/**
+				 * Trigger event
+				 * @param  {string} event Event to trigger
+				 * @return {this}
+				 */
+				trigger: function(event){
+					return em.trigger(event);
+				},
+
 				/**
 				 * Render editor
 				 * @return {HTMLElement}