Hehe:) extra dependency: libnotify

["Sergey Udaltsov" <sergey udaltsov gmail com>]

Hi all

There is a sensible idea to replace "system keyboard configuration
changed" warning dialog with the notification bubble:
http://bugzilla.gnome.org/show_bug.cgi?id=358048.

Any objections to adding libnotify dependency to g-c-c?

Thanks,

Sergey