Added processOwne flag for stop and kill tasks
Merge branch 'master' of https://github.com/brooklyncentral/brooklyn into fix/kill-process-sudo

* 'master' of https://github.com/brooklyncentral/brooklyn:
  do mgmt.terminate on ServerResource.shutdown
  improve REST API doc (Swagger) content: better, more consistent endpoint names, layout, and swallowing useless scary error messages; also moved "/v1/version" to "/v1/server/version" (kept the old one, but deprecated)
  fix groovy script so errors don't show previous data
  add rest call to shut the server down, and a gui link (in the help page for now, until we find a better place)
  use DatacenterToLocation for softlayer to know the location (and to avoid the Supplier<Location> which seems to cause guice circular references)
  filter list of nodes based on location
  use shorter group name for google cloud so we get more useful info in the machine name
Fix NPE when processOwner not set
Merge pull request #1077 from grkvlt/fix/kill-process-sudo

Added processOwner flag for stop and kill tasks