websocket stuff separated into messaging.js

views/index.ejs

@@ -327,6 +327,7 @@
 
     <script src="javascripts/link.js"></script>
     <script src="javascripts/sync.js"></script>
+    <script src="javascripts/messaging.js"></script>
     <script src="javascripts/utils.js"></script>
   </body>
 </html>