Various changes:
 - Removed old drive subsystem (Has been replaced by MecanumDrive)
 - Hard-coded PID values for position mode encoders.
 - Modified Auto1 to shoot the ball.
 - Added command for pressure readout, which is now default command for the pressure subsystem.
 - Switched polarity of relay for pickup (new solenoid) WILL NOT WORK ON BACKUP ROBOT FOR THE MOMENT.