Upon successful registration – not activation – the default redirect is to the URL pattern named registration_complete; this can be overridden in subclasses by changing success_url or implementing get_success_url()
However, the get_success_url method does not check the value of self.success_url.
This pull request allows setting success_url in the RegistrationView and ActivationView for the base views, and simple and default backends.
I have updated the docs as required, but the pull request still requires tests. I would be happy to write tests if you are happy with the approach I have taken in the patch.