Merge -c 1489227 from trunk to branch-2 to fix MAPREDUCE-5300. Fix backward incompatibility for o.a.h.mapreduce.filecache.DistributedCache. Contributed by Zhijie Shen.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489228 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5299. Changed jira number for the commit in CHANGES.txt.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489230 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5300. Moved to INCOMPATIBLE CHANGES section in CHANGES.txt.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489233 13f79535-47bb-0310-9956-ffa450edef68
Merge -c 1489234 from trunk to branch-2 to fix YARN-726. Fix queue & finish time fields in web-ui for ResourceManager. Contributed by Mayank Bansal.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489235 13f79535-47bb-0310-9956-ffa450edef68
Merge -c 1489236 from trunk to branch-2 to fix MAPREDUCE-5245. Added back constants to JobConf to fix incompatibilities. Contributed by Zhijie Shen.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489237 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9481. Merge r1481191 from trunk

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489239 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9287. Parallel-testing hadoop-common. Contributed by Andrey Klochkov


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489250 13f79535-47bb-0310-9956-ffa450edef68
YARN-748. Moved BuilderUtils from yarn-common to yarn-server-common for eventual retirement. Contributed by Jian He.
MAPREDUCE-5297. Updated MR App since BuilderUtils is no longer public after YARN-748. Contributed by Jian He.
svn merge --ignore-ancestry -c 1489257 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1489262 13f79535-47bb-0310-9956-ffa450edef68
YARN-757. Changed TestRMRestart to use the default scheduler to avoid test failures. Contributed by Bikas Saha.
svn merge --ignore-ancestry -c 1489268 ../../trunk/


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svn merge -c 1489271 FIXES: MAPREDUCE-5283. Over 10 different tests have near identical implementations of AppContext. Contributed by Sandy Ryza


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