LT-107: Add countdown dialog

- Remove ui from meteor-stale-session package

Packages/meteor-stale-session/server.js

@@ -17,7 +17,9 @@ Meteor.methods({
         if (!this.userId) { return; }
         var user = Meteor.users.findOne(this.userId);
         if (user) {
-            Meteor.users.update(user._id, {$set: {heartbeat: new Date()}});
+            var heartbeatTime = new Date();
+            Meteor.users.update(user._id, {$set: {heartbeat: heartbeatTime}});
+            return heartbeatTime;
         }
     }
 });