Merge latest trunk into tez branch. (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1612645 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6988: Hive changes for tez-0.5.x compatibility (Gopal V via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1612649 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7096: Support grouped splits in Tez partitioned broadcast join (Vikram Dixit, reviewed by Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1614949 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7096: Support grouped splits in Tez partitioned broadcast join (Vikram Dixit, reviewed by Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1614973 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7096: Support grouped splits in Tez partitioned broadcast join (Vikram Dixit, reviewed by Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1615007 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7601: Bring up tez-branch upto the API changes from TEZ-1058, TEZ-1303, TEZ-1346, TEZ-1041 (Gopal V via Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1616626 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7639: Bring tez-branch upto api changes in TEZ-1379, TEZ-1057, TEZ-1382 (Gopal V via Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1616627 13f79535-47bb-0310-9956-ffa450edef68
Bring tez-branch up-to the API changes made by TEZ-1372 (Gopal V via Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1616904 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7656: Bring tez-branch up-to the API changes made by TEZ-1372 (Gopal V via Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1616905 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7656: Bring tez-branch up-to the API changes made by TEZ-1372 (Gopal V via Vikram Dixit)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1616906 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7760 - Constants in VirtualColumn should be final (Eugene Koifman via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1618751 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7432 - Remove deprecated Avro's Schema.parse usages (Ashish Kumar Singh via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1618794 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7734: Join stats annotation rule is not updating columns statistics correctly (Prasanth J, reviewed by Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1618904 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7769 - add --SORT_BEFORE_DIFF to union all .q tests (Na Yang via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1618941 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7373 - Hive should not remove trailing zeros for decimal numbers (Sergio Peña via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1619000 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7068 : Integrate AccumuloStorageHandler (Josh Elser, reviewed by Navis, Nick Dimiduk & Sushanth Sowmyan)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1619005 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7771 : ORC PPD fails for some decimal predicates (Prasanth J, reviwed by Daniel Dai)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1619024 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7786 - add --SORT_BEFORE_DIFF to union all tez .q.out files (Brock reviewed by Szehon)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1619027 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7738 : tez select sum(decimal) from union all of decimal and null throws NPE (Alexander Pivovarov, reviewed by Gopal V)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1619032 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7629 - Problem in SMB Joins between two Parquet tables ( Suma Shivaprasad via Brock)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1619158 13f79535-47bb-0310-9956-ffa450edef68