Qrcode for #593

i've put the ignore list to queries like 'qr code reader' etc, let me know if that is enough or we ignore anything what follows these terms. Also i think we should move this from forever alone, to the goodies repo? :smiley: 
Hmm, there are two/three other ia's i recall which skipped the single quotes, so i didnt add them for consistency, i was thinking the same, your call?