songster-project/songster — pull request #60 by rieder91 (2014-12-28 17:28:16+00:00)
Title: allow QR codes for anon-users

currently anon users get a 400 when they try to view the qr code
![bildschirmfoto 2014-12-28 um 18 20 18](https://cloud.githubusercontent.com/assets/275897/5564412/47ad2dd6-8ebf-11e4-80e3-a45b21af8b78.png)