HIVE-5740: Tar files should extract to the directory of the same name minus tar.gz (Brock Noland reviewed by Xuefu Zhang)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1538733 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5542 : Webhcat is failing to run ddl command on a secure cluster (Sushanth Sowmyan via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1538758 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4523 - round() function with specified decimal places not consistent with mysql (Xuefu Zhang via Brock Noland)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1538778 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5354 - Decimal precision/scale support in ORC file (Xuefu Zhang via Brock Noland)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1538780 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1538885 13f79535-47bb-0310-9956-ffa450edef68