HIVE-2935 : Implement HiveServer2 (1st patch of 4) (Carl Steinbach and others via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1455646 13f79535-47bb-0310-9956-ffa450edef68
HIVE-2935 : Implement HiveServer2 Beeline code changes (2nd patch of 4) (Carl Steinbach and others via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1455648 13f79535-47bb-0310-9956-ffa450edef68
HIVE-2935 : Implement HiveServer2 Beeline .q.out files (3rd patch of 4) (Carl Steinbach and others via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1455649 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4096. problem in hive.map.groupby.sorted with distincts. (njain via kevinwilfong)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1455650 13f79535-47bb-0310-9956-ffa450edef68
HIVE-2935 : Implement HiveServer2 Core code changes  (4th patch of 4) (Carl Steinbach and others via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1455659 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4125. Expose metastore JMX metrics. (Samuel Yuan via kevinwilfong)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1455668 13f79535-47bb-0310-9956-ffa450edef68