Merge pull request RocketChat#314 from alexbrazier/feature/app-model

Set app user model id to improve notifications

Author: rodrigok

src/app.js

@@ -14,5 +14,7 @@ Bugsnag.metaData = {
 
 Bugsnag.appVersion = app.getVersion();
 
+app.setAppUserModelId('chat.rocket');
+
 window.$ = window.jQuery = require('./vendor/jquery-1.12.0');
 start();