YARN-1938. Added kerberos login for the Timeline Server. Contributed by Zhijie Shen.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1596710 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6396. Remove support for ACL feature from INodeSymlink. Contributed by Charles Lamb.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1596713 13f79535-47bb-0310-9956-ffa450edef68
YARN-2081. Fixed TestDistributedShell failure after YARN-1962. Contributed by Zhiguo Hong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1596724 13f79535-47bb-0310-9956-ffa450edef68