add failing test for replay attack
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
solve the replay attack problem by adding an AbstractDigestBackend class
Merge branch 'replay'

Conflicts:
	rest_framework_digestauth/tests.py