merge -c 1501601 from branch-2.1-beta to branch-2.1.0-beta to fix YARN-727, MAPREDUCE-5325. ClientRMProtocol.getAllApplications should accept ApplicationType as a parameter. Contributed by Xuan Gong.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1.0-beta@1501603 13f79535-47bb-0310-9956-ffa450edef68