use shorter group name for google cloud so we get more useful info in the machine name
filter list of nodes based on location
use DatacenterToLocation for softlayer to know the location (and to avoid the Supplier<Location> which seems to cause guice circular references)
Merge pull request #1076 from ahgittin/fix/clouds

misc fixes for using SL, RAX, GCE
add rest call to shut the server down, and a gui link (in the help page for now, until we find a better place)
fix groovy script so errors don't show previous data
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)
do mgmt.terminate on ServerResource.shutdown
Merge pull request #1075 from ahgittin/misc-gui

misc gui cleanups
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