HIVE-5129 Multiple table insert fails on count distinct (Vikram Dixit via Harish Butani)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1519764 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5149 : ReduceSinkDeDuplication can pick the wrong partitioning columns (Yin Huai via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1519805 13f79535-47bb-0310-9956-ffa450edef68
[HIVE-4586] - WebHCat should return 404 error for undefined resource (Daniel Dai)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1519818 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-GEN-TESTS-SPLIT-trunk-gd