switch django.utils.simplejson to python's json module
update requirements on django 1.5
prevent admin error emails on DEBUG False - see https://docs.djangoproject.com/en/dev/releases/1.4/#request-exceptions-are-now-always-logged
verify_exists was removed by django 1.4
import not required
adopt registration urls to upgraded django-registration module
verify_exists was removed by django 1.4
django.conf.urls.defaults deprecated
{% url use as expected for django >=1.3
activation_complete url and template
pass form_class as kwarg properly on class based view
auto add crowdform using user_registered signal
registration module stopped using form.save(), hence use custom backend that implement what was in form.save()
parse_datetime string to datetime object
refactored csv export tests, no http request
avoid redefinition of json module
use StreamingHttpResponse
use helper function to retrieve streaming content