qrcode-npm
==========
This is an npm module for qrcode JavaScript library (http://www.d-project.com/qrcode)
Notice that I am not the author of the code, I am just simply creating an npm module out of the great library from Kazuhiko Arase
Notice also that there is another module (node-qrcode, see: https://github.com/soldair/node-qrcode), which is more sophisticated and uses canvas object:
* qrcode-npm uses img or table tags, which is more friendly to older browsers
* if you know your target browser is canvas capable then I recommend using node-qrcode module
examples
--------
var qrCode = require('qrcode')
var qr = qrCode.qrcode(4, 'M');
qr.addData(text);
qr.make();
qr.createImgTag(4); // creates an tag as text
qr.createTableTag(4); // creates a