HIVE-5615 : Subquery support: more tests (Harish Butani via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1552854 13f79535-47bb-0310-9956-ffa450edef68
HIVE-3616 : Use Paths consistently (Ashutosh Chauhan via Harish Butani)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1552855 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5558 : Support alternate join syntax (Harish Butani via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1552857 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6045: Beeline hivevars is broken for more than one hivevar (Szehon via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1552859 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5992: Hive inconsistently converts timestamp in AVG and SUM UDAF's (reviewed by Prasad)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1552860 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6048 : Hive load data command rejects file with '+' in the name (Xuefu Zhang via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1553006 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1553112 13f79535-47bb-0310-9956-ffa450edef68