Leading whitespace in GTFS CSVs

[stationstops]

Some (all?) GTFS feeds have leading whitespace after the delimiter. This is really annoying because strings will have this inserted (do not ask my why it is not csv reader default), which makes for a difficult bug when testing string equality.

This is fixed by setting an option to the csv reader.

Fix: load_gtfs.py: 27 reader = csv.reader(f,skipinitialspace=True)