UIF exception request for Gwibber

[Ken VanDine]

The notification settings in the Gwibber preferences dialog are very
confusing and many users do not get the results they expect.  This bug
has details and screenshots of both the current settings UI and the
proposed UI:

https://bugs.launchpad.net/bugs/621646

Your consideration is appreciated, it would be great to get this change
into maverick.

Thanks,