YARN-2232. Fixed ResourceManager to allow DelegationToken owners to be able to cancel their own tokens in secure mode. Contributed by Varun Vasudev.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1607484 13f79535-47bb-0310-9956-ffa450edef68
YARN-2022. Fixing CHANGES.txt to be correctly placed.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1607486 13f79535-47bb-0310-9956-ffa450edef68