Added support for stop_times.pickup_type in GTFSImporter library. Updated GTFS database with Sept. 13 data.
Updated StopView to only show buses that have stop_times.pickup_type=0 (bus is scheduled to actually pickup).
Updated stop search so if user searches by stop ID, stops are only displayed if their ID matches exactly.
Now gtfs.db in Caches directory is deleted if it is stale compared to the gtfs.db file in the app bundle.