updated changelog for release

changelog.html

@@ -61,11 +61,13 @@ Upcoming changes</a>
 
 <!-- these changes are controlled by the release process. DO NOT MODIFY -->
 <div id="rc" style="display:none;"><!--=BEGIN=-->
-<h3><a name=v1.572>What's new in 1.572</a> <!--=DATE=--></h3>
+<h3><a name=v1.573>What's new in 1.573</a> <!--=DATE=--></h3>
+<!--=RC-CHANGES=-->
+</div><!--=END=-->
+<h3><a name=v1.572>What's new in 1.572</a> (2014/07/13)</h3>
 <ul class=image>
   <li class=>
 </ul>
-</div><!--=END=-->
 <h3><a name=v1.571>What's new in 1.571</a> (2014/07/07)</h3>
 <ul class=image>
   <li class=bug>