HIVE-6082 - Certain KeeperException should be ignored in ZooKeeperHiveLockManage.unlockPrimitive (Chaoyu Tang via Brock Noland)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1554316 13f79535-47bb-0310-9956-ffa450edef68