Added link to 1.3 release notes.
Added link to 1.3 release notes.

git-svn-id: f57c0e211f0bab51c8e7c99c442e5cf3c7ceb960@537699 13f79535-47bb-0310-9956-ffa450edef68

apache/commons-pool,apache/commons-pool,apache/commons-pool