Add QR codes

[edent]

So, I don't know Haskell :-)

This should print a QR code with the URL in it.

Ideally, this should probably use something like http://hackage.haskell.org/package/haskell-qrencode-1.0.3/docs/Data-QRCode.html

And the URL should probably be run through http://hackage.haskell.org/package/urlencoded-0.3.0.0/docs/Data-URLEncoded.html

[ehamberg]

Thanks! This should work, as far as I can see, but you don't actually need to close the <img> in the templating language used. That said, I want to give this some thought – I'd like to keep the design really simple. :-)