…unsupported. Also stopped enforcing the installation of setuptools, it's dangerous and not at all a good idea.
- This also changes the return type of the field to be `StringUUID`, a subclass of `uuid.UUID` that uses the purely hexadecimal representation when coerced to a string. - Sets the field's form max_length automatically to 32. - Use modern introspection API of South. - Added a bit of validation for the namespace and name parameters. - Extended tests.