HDFS-5638. HDFS implementation of FileContext API for ACLs. Contributed by Vinayakumar B.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1576405 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6072. Clean up dead code of FSImage. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1576513 13f79535-47bb-0310-9956-ffa450edef68
YARN-1821. NPE on registerNodeManager if the request has containers for UnmanagedAMs (kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1576525 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6086. Fix a case where zero-copy or no-checksum reads were not allowed even when the block was cached. (cmccabe)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1576533 13f79535-47bb-0310-9956-ffa450edef68
YARN-1800. Fixed NodeManager to gracefully handle RejectedExecutionException in the public-localizer thread-pool. Contributed by Varun Vasudev.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1576545 13f79535-47bb-0310-9956-ffa450edef68