Refs #25 - Adds Django1.6 test discovery fixes and tox configs
Refs #25 - Fixes tests to work with Django1.7. Adds Python3.4 to tox
Refs #25 - Simplifies test settings/setup so example.settings is used

Removes requirement of DJANGO_SETTINGS_MODULE being set for testing
Merge pull request #30 from calebsmith/feature/25-new-envs

Tests/Setup and bugfixes for newer Pythons/Djangos