HIVE-5930 : SQL std auth - implement set roles, show current roles (Ashutosh Chauhan via Thejas Nair)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1566029 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5783: Native Parquet Support in Hive (Justin via Xuefu)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1566173 13f79535-47bb-0310-9956-ffa450edef68