HIVE-6481. Add .reviewboardrc file (Carl Steinbach via cws)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1572895 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6475 : Implement support for appending to mutable tables in HCatalog (Sushanth Sowmyan, reviewed by Daniel Dai)


git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1573107 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6519 : Allow optional as in subquery definition (Gunther Hagleitner via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1573118 13f79535-47bb-0310-9956-ffa450edef68