YARN-2224. Fix CHANGES.txt. This was committed as YARN-2204 before.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1609583 13f79535-47bb-0310-9956-ffa450edef68
Merge r1609584 from trunk. YARN-2088. Fixed a bug in GetApplicationsRequestPBImpl#mergeLocalToBuilder. Contributed by Binglin Chang

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1609585 13f79535-47bb-0310-9956-ffa450edef68