Provide 'output' in action_execution API correctly
Provide 'output' in action_execution API correctly

Closes-Bug: #1440110

Change-Id: I78ad9f02ec6b391760c11568793cd4bc55cf3e20

dennybaa/mistral,StackStorm/mistral,StackStorm/mistral,dennybaa/mistral,openstack/mistral,openstack/mistral