Improve error message in ContentItem.plugin call
Improve error message in ContentItem.plugin call

Include the content type name too, not just the ID.

jpotterm/django-fluent-contents,edoburu/django-fluent-contents,ixc/django-fluent-contents,pombredanne/django-fluent-contents,django-fluent/django-fluent-contents,ixc/django-fluent-contents,ixc/django-fluent-contents,jpotterm/django-fluent-contents,edoburu/django-fluent-contents,django-fluent/django-fluent-contents,pombredanne/django-fluent-contents,edoburu/django-fluent-contents,pombredanne/django-fluent-contents,django-fluent/django-fluent-contents,jpotterm/django-fluent-contents