MAPREDUCE-3940. ContainerTokens should have an expiry interval. Contributed by Siddharth Seth and Vinod Kumar Vavilapalli. svn merge -c 1359910 --ignore-ancestry ../../trunk/

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2.0.1-alpha@1360207 13f79535-47bb-0310-9956-ffa450edef68
18 files changed