Initial work on Docker Build process

Agreed. Better to store values in ENV and parse at runtime (although that requires a container reboot to change) *or* use something like `etcd` to do clustered key/value storage across the instances so you can be as dynamic as you need.

Another suggestion is to make the uwsgi `touch-reload` file to be in `/host` so it is available from outside the container to make WSGI reloading simpler (`ssh {server} touch /containers/{app}/wsgi.reload`).