Update requirements/tests for Python 3 support.

git-svn-id: https://projects.ninemoreminutes.com/svn/django-crum/trunk@2 337099c1-c870-460c-9a52-8a2598fc2a6f
Update setup for uploading docs.

git-svn-id: https://projects.ninemoreminutes.com/svn/django-crum/trunk@3 337099c1-c870-460c-9a52-8a2598fc2a6f