Django-authgroupex

*New:*

* Unit tests.
* Python 3 compatibility.

*Bugfix:*

* Allow dots in fake username field.
* Various internal corrections.

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*Bugfix:*

* Properly use ``AUTHGROUPEX_LOGIN_REDIRECT_URL``.

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*Bugfix:*

* Fix bad string interpolation in logging calls

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*Bugfix:*

* Properly use ``AUTHGROUPEX_RETURN_URL`` when building the return URL

*New:*

* Add compatibility with Django custom User model.

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*Bugfix:*

* Fix packaging (stop using distribute)

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*New:*

* Moving towards a proper pluggable app
* Provide a ''fake'' mode through ``AUTHGROUPEX_FAKE``.