shortcuts in AOO, so the user gets feedback that AOO is
being started. This is important because it can take a long
time to start.

Tests show the notifications come up correctly, and go
away when the splash screen comes up, even without LIBSN,
because the GUI toolkit(s?) we use (GTK?) do this
automatically.

See also:
http://developer.gnome.org/integration-guide/stable/startup-notification.html.en
https://bugs.launchpad.net/ubuntu/+source/openoffice.org/+bug/479973