Three pkgsrc updates for DragonFly

[walt <wa1ter@xxxxxxxxxxxxx>]

http://leaf.dragonflybsd.org/~wa1ter/

I've updated gnome-multimedia, nautilus-cd-burner, and sane-backends.

All three packages compile on DFBSD-Development as of two days ago.
Whether all three packages actually do what they are supposed to do
-- that's a different question :o)  Please try them and let me know!