HADOOP-10228. FsPermission#fromShort() should cache FsAction.values(). Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558139 13f79535-47bb-0310-9956-ffa450edef68
Adding 2.0.6-alpha release to the CHANGES.txt

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558215 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5677. Need error checking for HA cluster configuration. Contributed by Vincent Sheffer.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558217 13f79535-47bb-0310-9956-ffa450edef68
YARN-1567. In Fair Scheduler, allow empty queues to change between leaf and parent on allocation file reload (Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558228 13f79535-47bb-0310-9956-ffa450edef68
YARN-1598. HA-related rmadmin commands don't work on a secure cluster (kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558251 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5704. Change OP_UPDATE_BLOCKS with a new OP_ADD_BLOCK. Contributed by Jing Zhao.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558255 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10234. "hadoop.cmd jar" does not propagate exit code. Contributed by Chris Nauroth.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558296 13f79535-47bb-0310-9956-ffa450edef68
YARN-1603. Remove two *.orig files which were unexpectedly committed. (Zhijie Shen via junping_du)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558337 13f79535-47bb-0310-9956-ffa450edef68
svn merge -c -1558337 . for reverting YARN-1603, which only partly committed.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558339 13f79535-47bb-0310-9956-ffa450edef68
YARN-1603. Remove two *.orig files which were unexpectedly committed. (Zhijie Shen via junping_du)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1558340 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk