YARN-534. Change RM restart recovery to also account for AM max-attempts configuration after the restart. Contributed by Jian He.
svn merge --ignore-ancestry -c 1466208 ../../trunk/


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1466209 13f79535-47bb-0310-9956-ffa450edef68