Updates requirements.txt
Adds script to run the app as a wsgi service using gunicorn
Adds helper script to execute commands inside virtualenv in production
Adds config files for Docker container

This config files will be uploaded to the container
Adds Dockerfile

This is an intermediate state, for code review only, and should not be merged
yet, since there are some things in the Dockerfile that should not be there
(such as setting the root password!).
Collects static files during deloy
Changes to Dockerfile
Merge branch 'feature/docker'

Conflicts:
	requirements.txt
Use a file users.json to load user data to the new container

This means you should have a `users.json` file in this tree (as you already
need a `geodjango.db` and a `authorized_keys`) but this file will not be
tracked by git.
Sets `DEBUG=False`