Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1561947 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1564132 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6255: Change Hive to not pass MRSplitsProto in MRHelpers.createMRInputPayloadWithGrouping (Thejas M Nair via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1564156 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6346: Add Hadoop-2.4.0 shims to hive-tez (Gopal V via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1564574 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1564925 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6376: Enable hive to work with tez on secure cluster (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1565473 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6391: Use pre-warm APIs in Tez to improve hive query startup (Gopal V via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1568231 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1568236 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6362: Support union all on tez (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1568894 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6453: Update TezProrcessors to work with Tez API changes (TEZ-668, TEZ-837) (Siddharth Seth via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1569172 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6493: Tez 0.3.0 API change (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571424 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6444: Create unique dag id for tez 0.3 (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571460 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6442: load_dyn_part1 is flaky on Tez because it doesn't have the stage re-arranger (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571481 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6498: Add config vars to be able to set different defaults for tez and mapred (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571588 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571600 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6501: Change hadoop dependency on tez branch (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571641 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6347: ZeroCopy read path for ORC RecordReader (Gopal V, reviewed by Owen)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571964 13f79535-47bb-0310-9956-ffa450edef68
Merge latest trunk into branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1572806 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6524: Update ORC Filedump stripe sizes to match the memory manager changes (Gopal V via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1573083 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6525: Fix some whitespace issues in GenTezUtils (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1573086 13f79535-47bb-0310-9956-ffa450edef68