Fixes #7591 - changed Sign out to Log out to fix inconsistent terminology around Login vs Sign Out
Fixes #7393 - searching users by role_id not supported
fixes #4386 - gem friendly_id to simplify find by id, name, label, etc
fixes #7560 - add :required => true on host fields that have conditional validation if host.managed?
Fixes #746 - Generate all the Host template when click on Build to avoid errors during installation.