updated changelog for release

changelog.html

@@ -61,7 +61,10 @@ Upcoming changes</a>
 
 <!-- these changes are controlled by the release process. DO NOT MODIFY -->
 <div id="rc" style="display:none;"><!--=BEGIN=-->
-<h3><a name=v1.573>What's new in 1.573</a> <!--=DATE=--></h3>
+<h3><a name=v1.574>What's new in 1.574</a> <!--=DATE=--></h3>
+<!--=RC-CHANGES=-->
+</div><!--=END=-->
+<h3><a name=v1.573>What's new in 1.573</a> (2014/07/20)</h3>
 <ul class=image>
   <li class="rfe">
     UI redesign: Changed element alignment, removed sidebar link underlines
@@ -77,7 +80,6 @@ Upcoming changes</a>
     Fixed unnecessary eager loading of build records in certain code path.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-18065">issue 18065</a>)
 </ul>
-</div><!--=END=-->
 <h3><a name=v1.572>What's new in 1.572</a> (2014/07/13)</h3>
 <ul class=image>
   <li class="major rfe">