YARN-724. Moved ProtoBase from api.records to api.records.impl.pb. Contributed by Jian He.
MAPREDUCE-5303. Changed MR app after moving ProtoBase to package impl.pb via YARN-724. Contributed by Jian He.
svn merge --ignore-ancestry -c 1489658 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.1-beta@1489661 13f79535-47bb-0310-9956-ffa450edef68