Django App skeleton

Based off of https://github.com/dereknutile/django-1.7-template, which is itself based off of https://github.com/twoscoops/django-twoscoops-project

Not fully working yet because we need some devops/infrastructure work to setup dependencies and connect to the services VM
It's a little bit of a bummer that otm1 uses `/var/projects/`, otm2 uses `/usr/local/` and this project will use `/opt/`. If we go with opp, we should stick with it, and we should consider migrating otm2.