type tracking improved 2

able to better track the type using tug-of-war. when the object at the head of the worm is classified as a car, the tug-of-war is pushed 0.5 positive. when the object is a person, it's pulled -1. the overall type of the worm is car if the cars are winning, person if the people are winning. this works because people tend to jump classification a lot, and cars tend to stay classified as cars. another approach would be to change the ratio for dividing people vs. car classification. we suspect this will become more important when the foreshortening calibration calculation is actually used in classification. -ation -ation -ation.