HADOOP-9511. Adding support for additional input streams (FSDataInputStream and RandomAccessFile) in SecureIOUtils so as to help YARN-578. Contributed by Omkar Vinit Joshi.


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1479014 13f79535-47bb-0310-9956-ffa450edef68
MAPREDUCE-5205. Fixed MR App to load tokens correctly. Contributed by Vinod Kumar Vavilapalli.
svn merge --ignore-ancestry -c 1479016 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1479018 13f79535-47bb-0310-9956-ffa450edef68
YARN-645. Moved RMDelegationTokenSecretManager from yarn-server-common to yarn-server-resourcemanager where it really belongs. Contributed by Jian He.
svn merge --ignore-ancestry -c 1479022 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1479026 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/branch-2' into branch-2-gd
Merge remote branch 'origin/branch-2-gd' into fb-HADOOP-9166-branch-2-gd