updated changelog for release

changelog.html

@@ -54,6 +54,11 @@ Upcoming changes</a>
 
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+<h3><a name=v1.634>What's new in 1.634</a> (2015/10/18)</h3>
 <ul class=image>
   <li class="major bug">
     Fix order of builds in new builds history widget introduced in 1.633.
@@ -86,7 +91,6 @@ Upcoming changes</a>
     Let a combobox display its drop-down when focused, so users can see candidates without entering a letter.
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-26278">issue 26278</a>)
 </ul>
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 <h3><a name=v1.633>What's new in 1.633</a> (2015/10/11)</h3>
 <ul class=image>
   <li class="rfe">