Changed csv reader function call to be python 3 compatible
Changed csv reader function call to be python 3 compatible

python 3 doesn't have a csv_reader.next() method, but both 2 and 3 have a next(csv_reader)

uw-it-aca/pivot,uw-it-aca/pivot,uw-it-aca/pivot,uw-it-aca/pivot,uw-it-aca/pivot