be more flexible re unicode/non-unicode filenames
be more flexible re unicode/non-unicode filenames

coherence-project/Coherence,coherence-project/Coherence,opendreambox/python-coherence,unintended/Cohen,opendreambox/python-coherence,furbrain/Coherence,furbrain/Coherence,sreichholf/python-coherence,sreichholf/python-coherence,ismaelgaudioso/Coherence,unintended/Cohen,ismaelgaudioso/Coherence