libgnomeui now depends on gnome-keyring

[Alexander Larsson <alexl redhat com>]

I introduced gnome-keyring in the dependency stack. It needs to be built
before libgnomeui. Also, libgnomeui requires the latest gnome-vfs.

I haven't changed jhbuild yet, because i'm not up to date with HEAD, so
i can't test the change.

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 Alexander Larsson                                            Red Hat, Inc 
                   alexl redhat com    alla lysator liu se 
He's a war-weary umbrella-wielding cowboy fleeing from a secret government 
programme. She's a cynical cigar-chomping wrestler with the power to see 
death. They fight crime!