YARN-2406. Move RM recovery related proto to yarn_server_resourcemanager_recovery.proto. Contributed by Tsuyoshi OZAWA
Add CHANGES.txt for YARN-2406.
YARN-2405. NPE in FairSchedulerAppsBlock. (Tsuyoshi Ozawa via kasha)
HDFS-6800. Support Datanode layout changes with rolling upgrade. (Contributed by James Thomas)
YARN-2449. Fixed the bug that TimelineAuthenticationFilterInitializer is not automatically added when hadoop.http.filter.initializers is not configured. Contributed by Varun Vasudev.
YARN-2450. Fix typos in log messages. Contributed by Ray Chiang.
HADOOP-10911. hadoop.auth cookie after HADOOP-10710 still not proper according to RFC2109. (gchanan via tucu)
YARN-2447. RM web service app submission doesn't pass secrets correctly. Contributed by Varun Vasudev
HADOOP-10814. Update Tomcat version used by HttpFS and KMS to latest 6.x version. (rkanter via tucu)
MAPREDUCE-5931. Validate SleepJob command line parameters. Contributed by Gera Shegalov
HDFS-6774. Make FsDataset and DataStore support removing volumes. Contributed by Lei Xu.
YARN-2462. TestNodeManagerResync#testBlockNewContainerRequestsOnStartAndResync should have a test timeout. Contributed by Eric Payne
Merge remote-tracking branch 'apache-commit/trunk' into HDFS-6581

Conflicts:
	hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java