3.0

Docker!

relaybroker is now available as a docker image under gempir/relaybroker on dockerhub.
Also a password is now passed via environment variable, the same for log level.

Removed Stats API, improved dev tools

The stats api is overkill for a simple chat proxy and I want to keep relaybroker as minimal as possible so it has been removed.
Also the Makefile now offers some cool options