Added org taking access to Surveys.
This taking access means that everyone with an active role for any organization for a given program can take the Survey. This will allow one Survey to be taken by both Org Admins and Mentors.
"""
Field-like classes that aren't really fields. It's easier to use objects that
have the same attributes as fields sometimes (avoids a lot of special casing).
"""
from django.db.models import fields
class OrderWrt(fields.IntegerField):
"""
A proxy for the _order database field that is used when
Meta.order_with_respect_to is specified.
"""
name = '_order'
attname = '_order'
column = '_order'