Begin to implement MongoDB
We don't need models with Django. Also, no auth or session in settings.py
Prep mongoengine according to http://staltz.github.io/djangoconfi-mongoengine
Re-add models. Trying to go without mongoengine was a mistake
No need for admin
Remove authentication; we don't need it just yet
Use mongoengine fields for models
Decide which directions to get stops for by calling /getdirections
Cache route data
Merge branch 'mongo'