Bundle quick and dirty fix

Rename, remove first line (start with services)
This is indeed quick and dirty ;-)
Perhaps it would be better to parse the YAML and then Marshal it in the new file excluding the root node?
This way we don't have to assume YAML files don't start with empty lines for example.
I also have another question: is it possible that we encounter bundle branches with more than one bundle in their bundles.yaml? Or even using inheritance (IIRC no longer supported)? If that's the case, how do we handle those?