YARN-71. Fix the NodeManager to clean up local-dirs on restart. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1460808 13f79535-47bb-0310-9956-ffa450edef68
YARN-439. Flatten NodeHeartbeatResponse. Contributed by Xuan Gong.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1460811 13f79535-47bb-0310-9956-ffa450edef68