Add the PID class.
Update the eye and joints.
Start wiring in the controller.
Show the P I D values.
Control the target.
Spelling
Merge branch 'master' into F_pid_loop
Basic pos calibration
Limits and pid tuning
Faster bus.

Get in :)
More power
Mark v0.3
Add raw to the name, so we dont get confused again.
Docs.