[FIXED JENKINS-5885] expand rootPOM with variables.

changelog.html

@@ -72,6 +72,9 @@ Upcoming changes</a>
   <li class=bug>
     Tests not recognized as failed if test initialization failed
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-6700">issue 6700</a>)
+  <li class=rfe>
+    Expand variables in the Maven POM definition in Maven projects.
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-5885">issue 5885</a>)
 </ul>
 </div><!--=TRUNK-END=-->