- added notification message if drive board is disabled when loading incompatible save state
- removed some superflous print statements, but have kept in printing out of force feedback commands for now (which have also been made more visual)
- made sure that feedback state is reset in SendStopAll()
- fixed bug in SendConstantForce which was sending incorrect values at times
- removed friction effect for now, until can determine its exact command seq
- added checking of compatibility of saved state and temporary disabling of drive board if not compatible