A more comprehensive tox.ini
Django 1.7 compat: admin redirect strategy (negates #22)

DAH now emulates both pre-1.7 and 1.7+ admin login functionality.

The admin_honeypot view function has been converted to a class-based
view, and django.VERSION checks have been sprinkled where needed.

tox.ini has also been heavily updated to run tests across all
supported versions of Django and Python.
Run coveralls in the coverage tox env.
Add the admin_honeypot namespace to url include examples.
First attempt at using tox for travis.