HIVE-6501: Change hadoop dependency on tez branch (Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571641 13f79535-47bb-0310-9956-ffa450edef68
HIVE-6347: ZeroCopy read path for ORC RecordReader (Gopal V, reviewed by Owen)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1571964 13f79535-47bb-0310-9956-ffa450edef68