svn merge -c 1499425 FIXES: MAPREDUCE-5358. MRAppMaster throws invalid transitions for JobImpl. Contributed by Devaraj K


git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1499426 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/branch-2' into branch-2-gd
Merge remote branch 'origin/branch-2-gd' into fb-YAHOO-218-branch-2-gd