YARN-381. Improve fair scheduler docs. Contributed by Sandy Ryza.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1464130 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5088. MR Client gets an renewer token exception while Oozie is submitting a job (daryn)

    merge -c1463804 from branch-2.0.4-alpha



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1464153 13f79535-47bb-0310-9956-ffa450edef68
Revert YARN-516 per HADOOP-9357.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1464181 13f79535-47bb-0310-9956-ffa450edef68
Revert initial HADOOP-9357 patch.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1464182 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd