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=-->
+<ul class=image>
+  <li class=>
+</ul>
+</div><!--=TRUNK-END=-->
+<h3><a name=v1.621>What's new in 1.621</a> (2015/07/19)</h3>
 <ul class=image>
   <li class=bug>
     Sort by 'Free Disk Space' is incorrect.
@@ -68,7 +73,6 @@ Upcoming changes</a>
     Don't run trigger for disabled/copied projects.
     (<a href="https://github.com/jenkinsci/jenkins/pull/1617">PR 1617</a>)
 </ul>
-</div><!--=TRUNK-END=-->
 <h3><a name=v1.620>What's new in 1.620</a> (2015/07/12)</h3>
 <ul class=image>
   <li class=bug>