io service ES6 refactoring

src/client/app.js

@@ -10,6 +10,7 @@ import AppController from './controllers/AppController';
 import HomeController from './controllers/HomeController';
 import TeamController from './controllers/TeamController';
 import DocumentsController from './controllers/DocumentsController';
+import IOService from './services/io';
 import api from './api/api';
 
 let deps = [
@@ -87,7 +88,7 @@ app.run(($location, $rootScope, $http) => {
 
 [
     api,
-    require('./services/io'),
+    IOService,
     require('./directives/mainMenu'),
     require('./directives/backgroundPicture'),
     require('./ui/menu'),

src/client/services/io.js

@@ -1,15 +1,12 @@
-/**
- * Created by tmshv on 15/03/15.
- */
+export default function (app) {
+    let socket;
 
-module.exports = function (app) {
-    var socket;
     function init(){
         socket = io();
     }
 
-    app.service("io", function () {
+    app.service('io',  () => {
         if (!socket) init();
         return socket;
     }); 
-};
+};