YARN-1766. Fixed a bug in ResourceManager to use configuration loaded from the configuration-provider when booting up. Contributed by Xuan Gong.
svn merge --ignore-ancestry -c 1574252 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1574253 13f79535-47bb-0310-9956-ffa450edef68