tnc-ba/strongTNC — pull request #178 by d22 (2014-05-16 20:52:00+00:00)
Title: Hide SWID-Tag-Button if no XML is available

On sessions with no SWID-Tags, the button should probably be hidden instead of disabled:

![img](http://tmp.dbrgn.ch/screenshots/20140506_213715.png)

At first I tried to click it and thought it was broken.