Fixed silly gate servo mixup. Front comes first.
Much improved dead-reckoning system able to take over when the VPS stops working.
Added a routine to drive in a circle. Tweaked the visiting routines.
Tweaks to constants for PID and constants affected by the new motor curve information.
Added space for data and analysis collected from experiments. Initially
only includes the motor velocity vs. ticks info.
Merge branch 'master' of https://github.com/jmptable/vs-robot
Added icky mac thing to the gitignore.