Add support for Django 1.7

/review @adepue
Test against latest patch releases
Run PyLint after unit tests
PyLint woes
No more support for Python 2.6

Django 1.7 doesn't support Python 2.6...sayonara!
Initialize apps in Django 1.7+

See
https://docs.djangoproject.com/en/1.7/releases/1.7/#standalone-scripts.
Merge pull request #17 from akshayjshah/django17

Add support for Django 1.7