HDFS-5246. Make Hadoop nfs server port and mount daemon port configurable. Contributed by Jinghui Wang

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1526316 13f79535-47bb-0310-9956-ffa450edef68
YARN-49. Improve distributed shell application to work on a secure cluster. Contributed by Vinod Kumar Vavilapalli.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1526330 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5503. Fixed a test issue in TestMRJobClient. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1526362 13f79535-47bb-0310-9956-ffa450edef68