YARN-1534. Fixed failure of test TestAHSWebApp. Contributed by Shinichi Yamashita.
svn merge --ignore-ancestry -c 1556751 ../YARN-321


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1562205 13f79535-47bb-0310-9956-ffa450edef68
YARN-1413. Implemented serving of aggregated-logs in the ApplicationHistory server. Contributed by Mayank Bansal.
svn merge --ignore-ancestry -c 1556752 ../YARN-321


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1562206 13f79535-47bb-0310-9956-ffa450edef68