Updated software version supported

When using ShowAngle, angle values interpreted from data stream instead of just incrementing for valid data in case of packet loss.
Lowered PWM min to work with generic replacement motors.
Added failsafe to shut down the motor when at 100% duty cycle and RPM not within range

Added firmware version to config to enable easy identification of which firmware is loaded
Made use of the F() macro in Serial print statements to reduce memory usage
Enabled LED indication of transmitting data

Add SampleTime to Help menu

fixed typo
added save reply

implement fix for PID to work from EEPROM values - needs testing