HDFS-6503. Fix typo of DFSAdmin restoreFailedStorage. Contributed by Zesheng Wu.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601958 13f79535-47bb-0310-9956-ffa450edef68
HDFS-6315. Decouple recording edit logs from FSDirectory. Contributed by Haohui Mai.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601960 13f79535-47bb-0310-9956-ffa450edef68
YARN-2124. Fixed NPE in ProportionalCapacityPreemptionPolicy. Contributed by Wangda Tan

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601964 13f79535-47bb-0310-9956-ffa450edef68
YARN-2125. Changed ProportionalCapacityPreemptionPolicy to log CSV in debug level. Contributed by Wangda Tan

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601980 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5920. Add Xattr option in DistCp docs. Contributed by Yi Liu.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601983 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10656. The password keystore file is not picked by LDAP group mapping. Contributed by Brandon Li

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1601985 13f79535-47bb-0310-9956-ffa450edef68
Moved the HDFS-2006 break down tasks list to 2.5 section in merging HDFS-2006 to branch-2

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1602003 13f79535-47bb-0310-9956-ffa450edef68