Fixed tests.
use six to add python 3 support
add 3.3 to travis file
Merge pull request #5 from defrex/python3

Add support for Python 3
1.1 README
bump version
improve README
ooops
small PEP8 fix
Merge branch 'master' of https://github.com/juanriaza/django-rest-framework-digestauth into replay