BUGFIX: Set the missing max_length field attribute.
BUGFIX: Set the missing max_length field attribute.

rossp/django-helpdesk,gwasser/django-helpdesk,django-helpdesk/django-helpdesk,django-helpdesk/django-helpdesk,django-helpdesk/django-helpdesk,rossp/django-helpdesk,rossp/django-helpdesk,gwasser/django-helpdesk,gwasser/django-helpdesk,gwasser/django-helpdesk,rossp/django-helpdesk,django-helpdesk/django-helpdesk