move the require for noble into the watch module exports function, this is because it was causing all of the gulp tasks to not finish
added to wiki the limitation of the rfduino when using serial communication
record the output throttle, this hopefully should help determine why the motors intermittently turn off
read the pwm signal in exactly as we want to send it out, this should mean the espruino has less to do.
remove the throttle mapping, as the pwm input is directly in the format of the output there is no need for this.