updated changelog for release

changelog.html

@@ -54,6 +54,11 @@ Upcoming changes</a>
 
 <!-- Record your changes in the trunk here. -->
 <div id="trunk" style="display:none"><!--=TRUNK-BEGIN=-->
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+  <li class=>
+</ul>
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+<h3><a name=v1.615>What's new in 1.615</a> (2015/05/25)</h3>
 <ul class=image>
   <li class=bug>
     Improper calculation of queue length in <code>UnlabeledLoadStatistics</code>
@@ -72,7 +77,6 @@ Upcoming changes</a>
     Reduce the thread overhead in <code>NodeMonitorUpdater</code>
     (<a href="https://github.com/jenkinsci/jenkins/pull/1714">PR 1714</a>)
 </ul>
-</div><!--=TRUNK-END=-->
 <h3><a name=v1.614>What's new in 1.614</a> (2015/05/17)</h3>
 <ul class=image>
   <li class=rfe>