force user to login when accessed from email message link

web/app/assets/javascripts/dialog/textMessageDialog.js

@@ -263,6 +263,7 @@
 
     // called from sidebar when messages come in
     function messageReceived(payload) {
+        alert("messageReceived");
         if(showing && otherId == payload.sender_id) {
           if(fullyInitialized) {
             renderMessage(payload.msg, payload.sender_id, payload.sender_name, payload.created_at, true);