update changelog for MavenArgumentInterceptorAction

changelog.html

@@ -68,6 +68,8 @@ Upcoming changes</a>
     CLI jar now has the version number in the manifest as well as the "-version" option.
   <li class=rfe>
     Upgrade aether version to 1.13 and sisu to 2.3.0 .
+  <li class=rfe>
+    add new action type to enable plugins to intercept the maven 'goals and options'
 </ul>
 </div><!--=TRUNK-END=-->