Cleanup console tag files on application startup and shutdown.
Add support for devices with long names

See http://launchpad.net/bugs/1130923
udev-acl install to usr
Be able to shutdown or reboot even without polkit or RBAC supports

Ck does NOTHING at the origin if its built without polkit or RBAC supports, except
display a warning using g_warning() (which does not make sense).
The trick is to to call do_stop()/do_restart() in the #else directive :)
Remove unused variable