fix action_history being opposite sign

[Quantizr]

Fixes #18

All leaderboard submissions need to be rerun. Default pid score goes from 147.506 to 141.3.

[haraschax]

Ok, thanks. Looking into where this actually comes from.

[haraschax]

Ok I think I figured out where it went wrong. The car APIs generally use a convention where positive torque means turning left. (this is from some dumb convention called ENU). Almost everywhere we use right-positive (NED from aviation). We converted the dataset prior to training but not here on loading it seems.

[haraschax]

Can you just add the negative sign to line 120 instead? And then add some comment like "car torque commands are logged with left-positive convention but this simulator uses right-positive"