AvrPinWatcher: properly report errors for ports without pin change interrupts, and use use AvrPorts list to detect ports which do support them
AvrPinWatcher: properly report errors for ports without pin change interrupts, and use use AvrPorts list to detect ports which do support them

ambrop72/aprinter,fixator/aprinter,ambrop72/aprinter,johnkingsley/aprinter,johnkingsley/aprinter,johnkingsley/aprinter,johnkingsley/aprinter,fixator/aprinter,johnkingsley/aprinter,ambrop72/aprinter,ambrop72/aprinter,johnkingsley/aprinter,ambrop72/aprinter,fixator/aprinter,ambrop72/aprinter,fixator/aprinter,fixator/aprinter,johnkingsley/aprinter,ambrop72/aprinter,fixator/aprinter