OOZIE-1486 Cut down on number of small files created to track a running action (mona)

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1518326 13f79535-47bb-0310-9956-ffa450edef68
release-log update for OOZIE-1486

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1518327 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk