YARN-1041. Added the ApplicationMasterProtocol API for applications to use the ability in ResourceManager to optionally not kill containers when the ApplicationMaster exits. Contributed by Jian He.
svn merge --ignore-ancestry -c 1557318 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1557319 13f79535-47bb-0310-9956-ffa450edef68