#49 Crash with notification disabled

[KarmaMantis]

If i switch off icon notifications gyachi crashes as follows:
(gyachi:20824): libnotify-CRITICAL **: notify_notification_new_with_status_icon: assertion `status_icon != NULL' failed

(gyachi:20824): libnotify-CRITICAL **: notify_notification_set_icon_from_pixbuf: assertion `notification != NULL' failed

(gyachi:20824): libnotify-CRITICAL **: notify_notification_set_timeout: assertion `notification != NULL' failed

(gyachi:20824): libnotify-CRITICAL **: notify_notification_show: assertion `notification != NULL' failed
Segmentation fault