[hm] Fix Derivative not working due to TempAverage getting reset with every measurement
[hm] Display Probe Noise on the LCD when the probe is off due to noise
[hm] Move servo in 50 steps rather than jumping to target PWM width
[hm] Replace GrillPid with const fan/servo pin with #defined version to allow use of digitalWriteFast
[hm] Remove USE_EXTERNAL_VREF. Hasn't been used since 1.0
[hm] Add bandgap calibration for more accurate scaling when bangap is used as reference
[hm] Oops PIN_SERVO is D8 not D5
[hm] Add id to RFmanager debug logging
[hm] Remove TSTATUS_NOISE detection
[hm] Restore RF node functionality removed with ADC freerun changes

Also fix 'R' and 'A' units resolving as !hasTemperature()
[hm] Display Pit Temp: 0 in manual mode if nothing plugged in
[hm] Disable noisedump by default
[hm] An easier way to swap the control probes. Static so it doesn't take more space
[hm] Reduce cutback of PID I sum when temperature is reached from 75% cut to 50% cut
[hm] 4khz tone doesn't need to do math, as 40000/160 is an even number
[hm] Output HMAR segment with HeaterMeter ADC Range information
[hm] Output noise once every 4 seconds instead of 8 so it will update with the 5sec period hmstatus
[hm] Fix compile without GRILLPID_DYNAMIC_RANGE
[hm] Updated DEFAULT_CONFIG. Fan FEEDVOLT now default, new PID constants, slimmer servo range, FanMax added as LED0, minfan=0
[hm] Version 20140630B 23,530 bytes