CC-2096 Schedule changes should be sent to RabbitMQ at most once per user request

Implemented as a plugin to Zend.  Now at most one schedule push to RabbitMQ
will happen per user action.  It's pretty sweet.

application/controllers/plugins/RabbitMqPlugin.php

@@ -0,0 +1,9 @@
+<?php
+
+class RabbitMqPlugin extends Zend_Controller_Plugin_Abstract
+{
+    public function dispatchLoopShutdown()
+    {
+        RabbitMq::PushScheduleFinal();
+    }
+}