Overload _get_url to return placeholder.
Overload _get_url to return placeholder.

Overloading Django’s FileFields url property to return the placeholder
if there is no image.

respondcreate/django-versatileimagefield,respondcreate/django-versatileimagefield,WGBH/django-versatileimagefield,WGBH/django-versatileimagefield,respondcreate/django-versatileimagefield,WGBH/django-versatileimagefield