lua-factory: GrlMediaBoxes cannot have their metadata resolved
lua-factory: GrlMediaBoxes cannot have their metadata resolved

Unless the resolver handles every media type.

https://bugzilla.gnome.org/show_bug.cgi?id=733303

grilofw/grilo-plugins,MathieuDuponchelle/grilo-plugins,MikePetullo/grilo-plugins,MikePetullo/grilo-plugins,MathieuDuponchelle/grilo-plugins,GNOME/grilo-plugins,GNOME/grilo-plugins,jasuarez/grilo-plugins,MikePetullo/grilo-plugins,MathieuDuponchelle/grilo-plugins,grilofw/grilo-plugins,jasuarez/grilo-plugins,MathieuDuponchelle/grilo-plugins