Usable Privacy DNS (updns) v0.2

1. DoH and DoT endpoints
Support for DNS over HTTPS (DoH) and DNS over TLS (DoT).
2. Cleanup and improved documentation
Usage instruction and privacy policy are available on Gitbooks: docs.usableprivacy.com.
3. Supervised Services
Services are automatically restarted on configuration changes (e.g. domain blocklist).
4. Support for Traefik2
Setup is ready to be used with Traefik v2.