Add a nice run() method to the job class that will run a flow.
Add a nice run() method to the job class that will run a flow.

Add a run method that does the association of the flow with the
job and ensure that said association does not happen more than
once (aka the listeners are not duplicated).

pombredanne/taskflow-1,jessicalucci/TaskManagement,openstack/taskflow,jimbobhickville/taskflow,junneyang/taskflow,citrix-openstack-build/taskflow,varunarya10/taskflow,junneyang/taskflow,varunarya10/taskflow,jimbobhickville/taskflow,openstack/taskflow,jessicalucci/TaskManagement,pombredanne/taskflow-1,citrix-openstack-build/taskflow