MAPREDUCE-5544. JobClient#getJob loads job conf twice. (Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1528200 13f79535-47bb-0310-9956-ffa450edef68
YARN-1228. Clean up Fair Scheduler configuration loading. (Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1528204 13f79535-47bb-0310-9956-ffa450edef68
YARN-1215. Merging change r1528234 from branch-2 to branch-2.1-beta

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1528241 13f79535-47bb-0310-9956-ffa450edef68