Update forms.py
Update forms.py

I am using Django 1.6. I am getting the following.
DeprecationWarning: Creating a ModelForm without either the 'fields' attribute or the 'exclude' attribute is deprecated - form RuleAdminForm needs updating
jscott1971/django-robots,jazzband/django-robots,jazzband/django-robots,jscott1971/django-robots,jezdez/django-robots,jezdez/django-robots