PushService startDeployment, update caches. Prep for ASGARD-1203 “cluster lockdown”.
ClusterController starts auto deploy through PushService startDeployment, update caches. Prep for ASGARD-1203 “cluster lockdown”.
Get workflow executions for object Link, and unit tests
Get running deployment for cluster
focus deployment logic
remove it from older push concepts and task screens

Conflicts:
	grails-app/controllers/com/netflix/asgard/ClusterController.groovy
	grails-app/controllers/com/netflix/asgard/TaskController.groovy
force cache updates on all SWF workflow starts
and only ask AWS about deploy open deploy workflows to see if it has closed
use proper return type for running deployment query
Update README.md
changes based on code review
tricking the build into running again
satisfy codenarc
Update README.md
Merge pull request #510 from claymccoy/openDeploymentWorkflowForCluster

get open deployment workflow for cluster