title: Rally Rest Api: QueryFilter: Get defects by timestamp
body: <p>Is there a way to use the QueryFilter to get defects updated since a timestamp? Something like this:</p>
  
  <pre><code>String timeStamp = "2012-08-24T19:10:09.154Z";
  QueryRequest defectRequest = new QueryRequest("defect");
  defectRequest.setFetch(new Fetch("LastUpdateDate"));
  defectRequest.setQueryFilter(new QueryFilter("LastUpdateDate", "&gt;", timeStamp);
  QueryResponse projectDefects = rallyApi.query(defectRequest);
  </code></pre>