make import_stops handle NaPTAN's latin1 encoding
make import_stops handle NaPTAN's latin1 encoding

stev-0/bustimes.org.uk,stev-0/bustimes.org.uk,stev-0/bustimes.org.uk,jclgoodwin/bustimes.org.uk,jclgoodwin/bustimes.org.uk,stev-0/bustimes.org.uk,stev-0/bustimes.org.uk,jclgoodwin/bustimes.org.uk,jclgoodwin/bustimes.org.uk