OOZIE-1441 Fix bugs related to coordchange and parentId in events (mona,virag via virag)

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1499475 13f79535-47bb-0310-9956-ffa450edef68
OOZIE-1249 SLA Documentation (mona,virag,rohini via rohini)

git-svn-id: https://svn.apache.org/repos/asf/oozie/trunk@1499515 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/trunk' into trunk