YARN 2163. WebUI: Order of AppId in apps table should be consistent with ApplicationId.compareTo()

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1605965 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-10565: Merging r1605987 from trunk to branch-2.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1605989 13f79535-47bb-0310-9956-ffa450edef68