added "Previous Vesions" section

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1593813 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/site/xdoc/download.xml.vm b/src/site/xdoc/download.xml.vm
index c94cb6e..7186d93 100644
--- a/src/site/xdoc/download.xml.vm
+++ b/src/site/xdoc/download.xml.vm
@@ -114,6 +114,12 @@
         </tbody>
       </table>
       </subsection>
+
+      <subsection name="Previous Versions">
+        
+      <p>Older non-recommended releases can be found on our <a href="http://archive.apache.org/dist/maven/plugins/">archive site</a>.</p>
+
+      </subsection>
     </section>
   </body>
 </document>