IRQ: proper simavr IRQ integration now bi-directional #20
AbstractPin: simplified rising/falling edge signal signature to distance it from the levelChange
signal
AbstractPin: added pullUp/pullDown slots for signal/slot convenience
AbstractPin: fixed DDR pin change events by masking the DDR register with the pin number
Peripherals: made connectNet a public slot
Peripherals: RESET slot tied to rising edge of RESET pin #29