Add a forward push before pulling back the material, reducing blobs at the end of the filament.
Fixed motor current PWM conversion comment.
Make the LCD menu inaccessible when USB messages are received.
Make sure the USB serial screen does not time-out during heating and homing. Add some more LCD control commands.
Merge branch 'master' of https://github.com/Ultimaker/SecretMarlin
Only goto serial printing screen when we get something else then M105 commands.
Reset the PID of the heated bed when stopped.
added G666 command (online height tuning) and LCD menu items