YARN-2816. NM fail to start with NPE during container recovery. Contributed by Zhihai Xu
(cherry picked from commit 49c38898b0be64fc686d039ed2fb2dea1378df02)
YARN-2811. In Fair Scheduler, reservation fulfillments shouldn't ignore max share (Siqi Li via Sandy Ryza)
HADOOP-11307. create-release script should run git clean first (kasha)

(cherry picked from commit 4fb96dbe3bbfd3ae88b41c816e15acee04518851)
HDFS-7386. Replace check "port number < 1024" with shared isPrivilegedPort method. Contributed by Yongjun Zhang.

(cherry picked from commit 1925e2a4ae78ef4178393848b4d1d71b0f4a4709)
YARN-2432. RMStateStore should process the pending events before close. Contributed by Varun Saxena
(cherry picked from commit 9b860661a5754e829bd8c34ef092757421589bbe)