Add Nafanin to CREDITS.
Add Nafanin to CREDITS.

sequitur/undum,Oreolek/undum-commonjs,Oreolek/undum,wcomartin/undum,idmillington/undum,sequitur/undum,idmillington/undum,sequitur/undum,eykd/undum,Oreolek/undum-commonjs,eykd/undum,eykd/undum,Oreolek/undum,wcomartin/undum,eykd/undum,Oreolek/undum,sequitur/undum,idmillington/undum,Oreolek/undum,wcomartin/undum,wcomartin/undum