Preparing RELEASE_NOTES for Hive 0.11.0rc2.


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1481124 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4530. Enforce minmum ant version required in build script (Arup Malakar via cws)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1481161 13f79535-47bb-0310-9956-ffa450edef68