add failing test for replay attack
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 remote-tracking branch 'upstream/master' into replay

Conflicts:
	rest_framework_digestauth/tests.py
update readme with new Backend docs
Clean up the formatting on the new README changes
fixed a typo in the new README content
install the current pack in travis
Merge branch 'master' of https://github.com/juanriaza/django-rest-framework-digestauth into replay
revert the package install change for travis
Merge pull request #6 from defrex/replay

This implementation is vulnerable to a replay attack