fixes #3867 - Wrong Compute Resource type shown on overview
fixes #4139 - fixed quiet flag in foreman-debug
fixes #4132 - helper select_f missing option for :multiple => true to increase width
fixes #3998 - API v2 error on /api/compute_resources, missing gce.json.rabl
fixes #4023 - API v2 - compute resources partials should should attribute alias names and not database column names
fixes #3760 - API v2 define metadata @total for each controller
Usergroup roles support

Working version which currently breaks a lot of tests however is ready
for testing by devs. There are still things to improve. Also we enable
users that can edit usergroups a privilege escalation atm.
Fixed tests
Add cycle detection and prevention in usergroups
Add migration for caching existing user roles
Fixed issue for redundant structures
Recache after remove

The only way to keep correct cache without complete recalculation or
having complete paths stored
With this we don't even need user_membership caching
Usergroup membership caching
Admin flag can be assigned to usergroup
Small refactorings
Roles design
Reviews
CRUD for filters
Add taxonomies to filters