AMBARI-1501. Nagios alerts do not update automatically. (yusaku)

git-svn-id: https://svn.apache.org/repos/asf/incubator/ambari/trunk@1450950 13f79535-47bb-0310-9956-ffa450edef68

ambari-web/app/utils/http_client.js

@@ -73,6 +73,9 @@ App.HttpClient = Em.Object.create({
     var timeout = setTimeout(function () {
       if (xhr.readyState == 4) {
         if (xhr.status == 200) {
+          try {
+            App.store.commit();
+          } catch (err) {}
           mapper.map($.parseJSON(xhr.responseText));
           tmp_val.complete.call(self);
           xhr.abort();