HIVE-3938 : Hive MetaStore should send a single AddPartitionEvent for atomically added partition-set. (Mithun Radhakrishnan via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1573590 13f79535-47bb-0310-9956-ffa450edef68