YARN-1590. Fixed ResourceManager, web-app proxy and MR JobHistoryServer to expand _HOST properly in their kerberos principles. Contributed by Mohammad Kamrul Islam.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1569537 13f79535-47bb-0310-9956-ffa450edef68
Update change description for HDFS-5953

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1569579 13f79535-47bb-0310-9956-ffa450edef68
YARN-1428. Fixed RM to write the final state of RMApp/RMAppAttempt to the application history store in the transition to the final state. (Contributed by Zhijie Shen)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1569585 13f79535-47bb-0310-9956-ffa450edef68