HDFS-5077. NPE in FSNamesystem.commitBlockSynchronization(). Contributed by Plamen Jeliazkov.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518851 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5484. YarnChild unnecessarily loads job conf twice (Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518857 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9909. org.apache.hadoop.fs.Stat should permit other LANG. (Shinichi Yamashita via Andrew Wang)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518862 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9774. RawLocalFileSystem.listStatus() return absolute paths when input path is relative on Windows. Contributed by Shanyu Zhao.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518865 13f79535-47bb-0310-9956-ffa450edef68
YARN-707. Added user information also in the YARN ClientToken so that AMs can implement authorization based on incoming users. Contributed by Jason Lowe.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1518868 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk-gd
Merge remote branch 'origin/trunk-gd' into fb-YAHOO-253-trunk-gd