add new feature

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@114743 13f79535-47bb-0310-9956-ffa450edef68

changes/plugin.jelly

@@ -40,4 +40,19 @@
       />
     
   </goal>
+
+  <define:taglib uri="changes:transform">
+    <define:tag name="release-version">
+      <j:useBean var="transformer" class="org.apache.maven.changes.ReleaseVersion"/>
+      <util:file var="f" name="${maven.docs.src}/changes.xml" />
+      <j:choose>
+        <j:when test="${date != null}">
+          ${transformer.releaseVersion(f, pom.currentVersion, version, date)}
+        </j:when>
+        <j:otherwise>
+          ${transformer.releaseVersion(f, pom.currentVersion, version)}
+        </j:otherwise>
+      </j:choose>
+    </define:tag>
+  </define:taglib>
 </project>