Update Boolean field to more closely match python library
Update Boolean field to more closely match python library

Python Reference:
distutils.util.strtobool(val)
Convert a string representation of truth to true (1) or false (0).
True values are y, yes, t, true, on and 1; false values are n, no, f, false, off and 0. Raises ValueError if val is anything else.
kgeorgy/django-rest-framework,ossanna16/django-rest-framework,edx/django-rest-framework,ossanna16/django-rest-framework,davesque/django-rest-framework,jpadilla/django-rest-framework,edx/django-rest-framework,linovia/django-rest-framework,jpadilla/django-rest-framework,ossanna16/django-rest-framework,linovia/django-rest-framework,jpadilla/django-rest-framework,dmwyatt/django-rest-framework,tomchristie/django-rest-framework,tomchristie/django-rest-framework,tomchristie/django-rest-framework,linovia/django-rest-framework,kgeorgy/django-rest-framework,davesque/django-rest-framework,davesque/django-rest-framework,edx/django-rest-framework,dmwyatt/django-rest-framework,atombrella/django-rest-framework,dmwyatt/django-rest-framework,kgeorgy/django-rest-framework,atombrella/django-rest-framework,atombrella/django-rest-framework