YARN-628. Fix the way YarnRemoteException is being unrolled to extract out the underlying exception. Contributed by Siddharth Seth.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1483207 13f79535-47bb-0310-9956-ffa450edef68
Move HDFS-347 and related JIRAs to 2.0.5 section of CHANGES.txt after backport


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1483212 13f79535-47bb-0310-9956-ffa450edef68