Merge pull request facebook#3 from pieterv/messagestore-bugfix

Call `MessageStore.emitChange` in example

Author: fisherwebdev

examples/flux-chat/js/stores/MessageStore.js

@@ -113,7 +113,7 @@ MessageStore.dispatchToken = ChatAppDispatcher.register(function(payload) {
     case ActionTypes.CLICK_THREAD:
       ChatAppDispatcher.waitFor([ThreadStore.dispatchToken]);
       _markAllInThreadRead(ThreadStore.getCurrentID());
-      MessageStore.emitChange;
+      MessageStore.emitChange();
       break;
 
     case ActionTypes.CREATE_MESSAGE: