HIVE-2711 : Make the header of RCFile unique (Owen Omalley via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1325442 13f79535-47bb-0310-9956-ffa450edef68
HIVE-3018 Make the new header for RC Files introduced in HIVE-2711 optional
(Kevin Wilfong via namit)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1337937 13f79535-47bb-0310-9956-ffa450edef68
HIVE-3153 : Release codecs and output streams between flushes of RCFile (Owen Omalley via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1367692 13f79535-47bb-0310-9956-ffa450edef68
HIVE-3599 missing return of compression codec to pool (Owen O'Malley via egc)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1400484 13f79535-47bb-0310-9956-ffa450edef68
Set version to 0.9.0-amplab-2
Merge pull request #6 from mbautin/shark-0.9-backport-rcfile-patches

Backport RCFile-related patches for better compatibility with CDH 4.1.2