MAPREDUCE-5263. Bring back old methods and fields in filecache.DistributedCache for binary compatibility with mapred in 1.x. Contributed by Zhijie Shen.
svn merge --ignore-ancestry -c 1487695 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1487696 13f79535-47bb-0310-9956-ffa450edef68