Update models.py
Update models.py

Added yes/no for using attachments
carthage-college/django-djforms,carthagecollege/django-djforms,carthage-college/django-djforms,carthagecollege/django-djforms,carthage-college/django-djforms,carthagecollege/django-djforms,carthage-college/django-djforms,carthagecollege/django-djforms