updated changelog for release

changelog.html

@@ -54,12 +54,16 @@
 
 <!-- Record your changes in the trunk here. -->
 <div id="trunk" style="display:none"><!--=TRUNK-BEGIN=-->
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+<h3><a name=v1.652>What's new in 1.652</a> (2016/03/06)</h3>
 <ul class=image>
   <li class="bug">
     Under some conditions Jenkins startup could fail because of incorrectly linked extensions; now recovering more gracefully.
     (<a href-"https://issues.jenkins-ci.org/browse/JENKINS-25440">issue 25440</a>)
 </ul>
-</div><!--=TRUNK-END=-->
 <h3><a name=v1.651>What's new in 1.651</a> (2016/02/28)</h3>
 <ul class=image>
   <li class="rfe">