HDFS-6222. Remove background token renewer from webhdfs. Contributed by Rushabh Shah and Daryn Sharp.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604300 13f79535-47bb-0310-9956-ffa450edef68
Updated release notes for hadoop-2.4.1 rc1.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604314 13f79535-47bb-0310-9956-ffa450edef68
YARN-2187. FairScheduler: Disable max-AM-share check by default. (Robert Kanter via kasha)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604321 13f79535-47bb-0310-9956-ffa450edef68
HDFS-4667. Capture renamed files/directories in snapshot diff report. Contributed by Jing Zhao and Binglin Chang.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604488 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6583. Remove clientNode in FileUnderConstructionFeature. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604541 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6507. Improve DFSAdmin to support HA cluster better. (Contributd by Zesheng Wu)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604692 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6580. FSNamesystem.mkdirsInt should call the getAuditFileInfo() wrapper. Contributed bu Zhilei Xu.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1604704 13f79535-47bb-0310-9956-ffa450edef68
HDFS-2856: test code refactoring
Merge branch 'trunk' into HDFS-2856