HIVE-4546 : Hive CLI leaves behind the per session resource directory on non-interactive invocation (Prasad Mujumdar via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489431 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4377 : Add more comment to https://reviews.facebook.net/D1209 (HIVE2340) :  (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489436 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4646 : skewjoin.q is failing in hadoop2 (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489441 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