(Openstack) Adding default config for user data files. (#1290)
(Openstack) Adding default config for user data files. (#1290)

Default being, not set, but clouddriver.yml will read it from
spinnaker.yml if set.
duftler/spinnaker,duftler/spinnaker,Roshan2017/spinnaker,skim1420/spinnaker,duftler/spinnaker,spinnaker/spinnaker,ewiseblatt/spinnaker,skim1420/spinnaker,ewiseblatt/spinnaker,ewiseblatt/spinnaker,jtk54/spinnaker,skim1420/spinnaker,jtk54/spinnaker,ewiseblatt/spinnaker,jtk54/spinnaker,spinnaker/spinnaker,Roshan2017/spinnaker,spinnaker/spinnaker,Roshan2017/spinnaker,skim1420/spinnaker,spinnaker/spinnaker,duftler/spinnaker