Icons not showing up
Hello,
I just got the plugin to run with 3.4.1 but there is still one problem. When opening up any of the icon collections it looks always like this:

![bildschirmfoto 2015-11-12 um 3 58 11 nachm](https://cloud.githubusercontent.com/assets/3187582/11121447/377fc620-8956-11e5-9f4d-fdb6674ceb72.png)
What am I doing wrong?
Thank you very much.
