YARN-695. Remove masterContainer and status unused fields from ApplicationReportProto and fix bugs in ApplicationReportPBImpl. Contributed by Zhijie Shen.
svn merge --ignore-ancestry -c 1484612 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1484613 13f79535-47bb-0310-9956-ffa450edef68