setting up django-grappelli and fixes #164

this commit just enables django-grappelli with the most
basic of settings
Upgrade bleach
Use print function everywhere
Stub out Steve API tests for Python 3
Import reload (not bult-in in Python 3)
Use next() for generators (for future-proofing)
Import urllib.parse in Python 3 (instead of urllib)
Use self.assert[Not]Contains to fix unicode errors
Use text_type instead of unicode
Only compare bytestring to response.content
Use smart_text to convert bytestrings to unicode

@jezdez this is the problem I was talking about
Remove unnecessary browserid_info template tag
Support Python 2 and 3 for models
Remove 2.6 support and add 3.3 support
Remove non-existant context processor
Add Django 1.7 to tox file
Fix title in base template

This fixes the title in the base template which (previously) could end
up as an empty string.
Upgrade eadred and django-browserid :fireworks:
Fix draft mode message
Merge pull request #225 from treyhunner/python3

Add support for Python 3