YARN-1764. Modified YarnClient to correctly handle failover of ResourceManager after the submitApplication call goes through. Contributed by Xuan Gong.
svn merge --ignore-ancestry -c 1576160 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1576162 13f79535-47bb-0310-9956-ffa450edef68