Server deployment

This updates the latest master to be able to be ran on the server. It moves the database configuration to the /backend/ folder, and adds support for a different config for dev and production. It also adds readme instructions for running the backend on the server.

LGTM

By Geert Habben Jansen on 2018-05-14T15:53:53 (imported from GitLab project)

merged

By Geert Habben Jansen on 2018-05-14T15:53:58 (imported from GitLab project)

mentioned in commit 24bb6839

By Geert Habben Jansen on 2018-05-14T15:53:59 (imported from GitLab project)