YARN-2404. Removed ApplicationAttemptState and ApplicationState class in RMStateStore. Contributed by Tsuyoshi OZAWA
MAPREDUCE-5568. Fixed CompletedJob in JHS to show progress percentage correctly in case the number of mappers or reducers is zero. Contributed by MinJi Kim
HADOOP-11300. KMS startup scripts must not display the keystore / truststore passwords. Contributed by Arun Suresh.
HDFS-7097. Allow block reports to be processed during checkpointing on standby name node. (kihwal via wang)
HADOOP-11173. Improve error messages for some KeyShell commands.
YARN-2906. CapacitySchedulerPage shows HTML tags for a queue's Active Users. Contributed by Jason Lowe
YARN-2188. [YARN-1492] Client service for cache manager. (Chris Trezzo and Sangjin Lee via kasha)
Revert "MAPREDUCE-5785. Derive heap size or mapreduce.*.memory.mb automatically. (Gera Shegalov and Karthik Kambatla via kasha)"

This reverts commit a4df9eed059977374c8e889cb85d79e8e514ad30.