HIVE-4620 MR temp directory conflicts in case of parallel execution mode (Prasad Mujumdar via Navis)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489226 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4418 : TestNegativeCliDriver failure message if cmd succeeds is misleading (Thejas Nair via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489278 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4585 : Remove unused MR Temp file localization from Tasks (Gunther Hagleitner via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489279 13f79535-47bb-0310-9956-ffa450edef68
HIVE-2670 A cluster test utility for Hive (gates and Johnny Zhang via gates)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1489376 13f79535-47bb-0310-9956-ffa450edef68
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-tracking branch 'upstream/trunk' into
HIVE-2206-3671-Refactoring

Conflicts:
	ql/src/java/org/apache/hadoop/hive/ql/optimizer/ReduceSinkDeDuplication.java
fix NPE and update test results