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=v1.597>What's new in 1.597</a> <!--=DATE=--></h3>
+<h3><a name=v1.598>What's new in 1.598</a> <!--=DATE=--></h3>
+<!--=RC-CHANGES=-->
+</div><!--=END=-->
+<h3><a name=v1.597>What's new in 1.597</a> (2015/01/19)</h3>
 <ul class=image>
   <li class='major rfe'>
     <b><tt>JENKINS_HOME</tt> layout change</b>: builds are now keyed by build numbers and not timestamps.
@@ -90,7 +93,6 @@ Upcoming changes</a>
     Add range check for H(X-Y) syntax.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-25897">issue 25897</a>)
 </ul>
-</div><!--=END=-->
 <h3><a name=v1.596>What's new in 1.596</a> (2015/01/04)</h3>
 <ul class=image>
   <li class=bug>