OOZIE-1481 Getting a coordinator job info with len=0 should return 0 actions (rohini)

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1510723 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk
Merge remote branch 'origin/trunk' into trunk-gd