Updated openstack/openstack
Project: openstack/django_openstack_auth  f9d22f16c2d9e21998829565d2a32732acebbe1f

Remove admin role name 'admin' hardcode in User.is_superuser()

Because of hardcoding name as the 'admin' was impossible to
use administrative panel with a custom administrative role name.
This fix replaces hardcoded the name of the administrative role
with the Horizon settings constant with list of roles.
So, now administrative roles can be multiple.
Related commit: https://review.openstack.org/#/c/123741/

Change-Id: I04277cd50a938f02949ae0e33228e1628197d252
Partial-Bug: #1161144