Refactor calling handle_* into a separate task
Refactor calling handle_* into a separate task

Change-Id: I8352732328d0009688724f2b2ef8ca90fab16955

maestro-hybrid-cloud/heat,dims/heat,rh-s/heat,noironetworks/heat,dims/heat,takeshineshiro/heat,dragorosson/heat,redhat-openstack/heat,srznew/heat,steveb/heat,takeshineshiro/heat,pratikmallya/heat,jasondunsmore/heat,dragorosson/heat,rh-s/heat,pratikmallya/heat,miguelgrinberg/heat,rdo-management/heat,miguelgrinberg/heat,noironetworks/heat,jasondunsmore/heat,steveb/heat,cryptickp/heat,cwolferh/heat-scratch,gonzolino/heat,cwolferh/heat-scratch,openstack/heat,pshchelo/heat,maestro-hybrid-cloud/heat,rdo-management/heat,gonzolino/heat,pshchelo/heat,redhat-openstack/heat,openstack/heat,srznew/heat,cryptickp/heat