Make socket.on/socket.addListener chainable. Fixes #81

.gitignore

@@ -1,3 +1,7 @@
+
+.idea
+atlassian-ide-plugin.xml
+
 coverage/
 node_modules/
 bower_components/

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-socket-io",
-  "version": "0.7.0",
+  "version": "0.7.1",
   "main": "socket.js",
   "dependencies": {
     "angular": "^1.2.6"

package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-socket-io",
-  "version": "0.7.0",
+  "version": "0.7.1",
   "main": "socket.js",
   "directories": {
     "test": "test"

socket.js

@@ -1,6 +1,6 @@
 /*
  * @license
- * angular-socket-io v0.7.0
+ * angular-socket-io v0.7.1
  * (c) 2014 Brian Ford http://briantford.com
  * License: MIT
  */
@@ -33,11 +33,11 @@ angular.module('btford.socket-io', []).
         var defaultScope = options.scope || $rootScope;
 
         var addListener = function (eventName, callback) {
-          socket.on(eventName, callback.__ng = asyncAngularify(socket, callback));
+          return socket.on(eventName, callback.__ng = asyncAngularify(socket, callback));
         };
 
         var addOnceListener = function (eventName, callback) {
-          socket.once(eventName, callback.__ng = asyncAngularify(socket, callback));
+          return socket.once(eventName, callback.__ng = asyncAngularify(socket, callback));
         };
 
         var wrappedSocket = {