Update download link

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/net/branches/NET_2_0@923767 13f79535-47bb-0310-9956-ffa450edef68

Author: Niall Pemberton

src/site/site.xml

@@ -27,7 +27,7 @@
     <menu name="Documentation">
       <item name="Migration How-to"      href="/migration.html"/>
       <item name="FAQ"                   href="/faq.html"/>
-      <item name="Download"              href="/download.html"/>
+      <item name="Download"              href="http://commons.apache.org/net/download_net.cgi"/>
       <item name="Javadoc"               href="apidocs/index.html"/>
       <item name="Release Notes"         href="/changes-report.html"/>
       <item name="Issue Tracking"        href="/issue-tracking.html"/>