Fixing logic in gauth middleware to avoid calling `is_anonymous()` on `django_user` when it's `None`.
Fixing logic in gauth middleware to avoid calling `is_anonymous()` on `django_user` when it's `None`.

potatolondon/djangae,grzes/djangae,chargrizzle/djangae,chargrizzle/djangae,armirusco/djangae,grzes/djangae,armirusco/djangae,kirberich/djangae,asendecka/djangae,armirusco/djangae,kirberich/djangae,kirberich/djangae,asendecka/djangae,asendecka/djangae,potatolondon/djangae,grzes/djangae,chargrizzle/djangae