fix typos and handle case with no assignments in getAccuracy
move date range assignment outside pickle loading so it works in either case
IMPORTANT CHANGE - replace increaseFactor with 1.

Comment describes increaseFactor as arbitrary, and set to favor more
data. In tests, it increased the avgMillis by ~100, making no blocks
appear within the minimum 4hr (or 40 minute) window. Replacing this
factor with 1 allows blocks to be recognized as reasonable and allows
trips to actually be assigned.
try alternative to projectToShape using shapely, unfortunately it gives no speedup here
remove time cut and move date to December for similarity with BusTripper.classify tests