Button library has bounce issues

[AlexanderBrevig]

Thanks to: Vytautas Janušonis

Reproduce errors using:

include <Button.h>

Button button = Button(2,PULLUP);

int counter = 0;

void setup()
{
pinMode(13, OUTPUT); //debug to led 13
Serial.begin(9600);
}

void loop()
{
if(button.uniquePress()) // kitos galimos funkcijos: | isPressed() | wasPressed() | stateChanged()
{
counter++;
Serial.print("On\n");
Serial.println(counter);
digitalWrite(13,HIGH);
}
}

I guess we should add some debounce time constant as to prevent a high frequency registration of presses.