Don't use absolute paths in the JSON format.
Don't use absolute paths in the JSON format.

All paths should be relative to the metadata directory. That it works
differently in the XML format is a weird concession for Betwixt that we don't
need to replicate.

mathieuanthoine/flump,mathieuanthoine/flump,funkypandagame/flump,tconkling/flump,funkypandagame/flump,tconkling/flump,mathieuanthoine/flump