qr code generator + fix profile windows

![2014-02-26 17 00 19](https://f.cloud.github.com/assets/426427/2270065/181bc2b8-9ee6-11e3-83d2-2bae74b84b7c.png)

![2014-02-26 17 06 31](https://f.cloud.github.com/assets/426427/2270121/58bdda9e-9ee7-11e3-8073-8538bca5f557.png)
![2014-02-26 17 07 23](https://f.cloud.github.com/assets/426427/2270120/58bc1c0e-9ee7-11e3-9d74-d06f5e5885ad.png)