Hadoop HDFS Change Log for HDFS-4685

HDFS-4685 (Unreleased)

  INCOMPATIBLE CHANGES

  NEW FEATURES

  IMPROVEMENTS
    HDFS-5594. FileSystem API for ACLs. (cnauroth)

    HDFS-5650. Remove AclReadFlag and AclWriteFlag in FileSystem API.
    (Haohui Mai via cnauroth)

    HDFS-5596. Implement RPC stubs. (Haohui Mai via cnauroth)

  OPTIMIZATIONS

  BUG FIXES