git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1467130 13f79535-47bb-0310-9956-ffa450edef68
(Missing commit message from the previous commit)
YARN-486. Changed NM's startContainer API to accept Container record given by RM as a direct parameter instead of as part of the ContainerLaunchContext record. Contributed by Xuan Gong.
MAPREDUCE-5139. Update MR AM to use the modified startContainer API after YARN-486. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1467131 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9471. Merged into 2.0.4-alpha. Fixing CHANGES.txt


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1467138 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-4985. Add compression option to TestDFSIO usage. Contributed by Plamen Jeliazkov.

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Merge remote branch 'origin/branch-2' into branch-2-gd
Merge remote branch 'origin/branch-2-gd' into fb-MAPREDUCE-4884-branch-2-gd