gmailsniffer segfaults when "use system notifier is selceted"

Please try the following
- Delete ~/.config/Katropine [fresh install]
- Start gmail binary in terminal window
- Open Settings
- Go to folder "Username Password"
- Fill in user credentials
- Go to folder "Notification"
- Select "Use system notifier" + "New email alert"
- Press "Test"
- Press "OK"
- gmailsniffer will segfault with this error message

https://gist.github.com/JHooverman/5791720
