Update download page in preparation for 1.3.1 release
Update download page in preparation for 1.3.1 release

git-svn-id: 4df6fc2fa5570e860fd57fa770edce8ae587d435@1565240 13f79535-47bb-0310-9956-ffa450edef68

apache/commons-fileupload,apache/commons-fileupload