GNOME 3 working on FreeBSD 8.4

[Don Lewis]

I finally managed to get GNOME 3 working on my FreeBSD 8.4 machine,
using the patches contained in these PRs:
	<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196041>
	<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199435>
	<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199434>
	<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199746>
These are probably needed from FreeBSD 9.3 as well.