Avoid Resolver404 on some django-CMS pages.
Avoid Resolver404 on some django-CMS pages.

When adding a django-CMS plugin in front-end editing, Django is unable
to resolve the URL.  I chose to add a Warning since this issue has an
unknow issue.

philippeowagner/django-terms,philippeowagner/django-terms,BertrandBordage/django-terms,BertrandBordage/django-terms