HIVE-3764 : Support metastore version consistency check (Prasad Mujumdar via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1525288 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4732 : Reduce or eliminate the expensive Schema equals() check for AvroSerde (Mohammad Kamrul Islam via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1525290 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5306 : Use new GenericUDF instead of basic UDF for UDFAbs class (Mohammad Kamrul Islam via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1525294 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4910 : Hadoop 2 archives broken (Vikram Dixit K via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1525297 13f79535-47bb-0310-9956-ffa450edef68