config.yml was only an example, so name it as config.yml.example and
ignore any config.yml, that checkout could be used as local
project-directory without conflicts.
DnsblCollector will have singleton-behaviour like process configs and an
own Registry. Config was loaded every request, yet.
There was one Registry, which was reused for every request. Now every
request will use his own Registry.
Requests will get the content of both Registries.
