HDFS-4904. Remove JournalService. Contributed by Arpit Agarwal.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1493235 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-9646: Inconsistent exception specifications in FileUtils#chmod



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1493241 13f79535-47bb-0310-9956-ffa450edef68
add CHANGES.txt description for HADOOP-9646. (Colin Patrick McCabe)



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1493245 13f79535-47bb-0310-9956-ffa450edef68
revert HADOOP-9646 to fix hadoop-streaming compile issue



git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1493252 13f79535-47bb-0310-9956-ffa450edef68
YARN-639. Modified Distributed Shell application to start using the new NMClient library. Contributed by Zhijie Shen.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1493280 13f79535-47bb-0310-9956-ffa450edef68