Addig previous releases menu. Updating download page. Fixing link in upgrading page

git-svn-id: https://svn.apache.org/repos/asf/synapse/trunk@1776258 13f79535-47bb-0310-9956-ffa450edef68
3 files changed
tree: 23d4fc4dc3180191fcf94dd9aac57824dd99c580
  1. java/
  2. scratch/