The first major version change in almost a year! This one includes:
- Almost every categorical column has been mapped to a human readable string. `chp_road_type` is one exception, because I can not find information about what the road types are.
- Closed 7: There is now a human-redable `county_location` column.
- Closed 3: `bicycle_collision` is now True/False instead of True/NULL.
- Closed 6: The most common makes are now normalized, but there are still a bunch of missing ones. See new bug: 12