YARN-981. Fixed YARN webapp so that /logs servlet works like before. Addendum patch to fix bugs in the first patch. Contributed by Jian He.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1519208 13f79535-47bb-0310-9956-ffa450edef68
HDFS-5136 MNT EXPORT should give the full group list which can mount the exports. Contributed by Brandon Li

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1519222 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk