YARN-806. Moved ContainerExitStatus from yarn.api to yarn.api.records. Contributed by Jian He.
svn merge --ignore-ancestry -c 1493138 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1493139 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4783. Merging change r1493149 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1493151 13f79535-47bb-0310-9956-ffa450edef68
YARN-803. factor out scheduler config validation from the ResourceManager to each scheduler implementation. (tucu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1493161 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/branch-2' into branch-2-gd
Merge remote branch 'origin/branch-2-gd' into fb-HADOOP-9063-branch-2-gd