Fixed #1802 -- Fixed database integrity error when creating permission objects...

    for klass in app_models:

        ctype = ContentType.objects.get_for_model(klass)

        for codename, name in _get_all_permissions(klass._meta):

            try:

                Permission.objects.get(name=name, codename=codename, content_type__pk=ctype.id)

            except Permission.DoesNotExist:

                p = Permission(name=name, codename=codename, content_type=ctype)

                p.save()

            p, created = Permission.objects.get_or_create(codename=codename, content_type__pk=ctype.id,

                defaults={'name': name, 'content_type': ctype})

            if created:

                print "Adding permission '%s'" % p

def create_superuser(app, created_models):