1.4RC2 installer

[Richard Nyberg <rnyberg@xxxxxxxxxxxxx>]

I happened to notice that the installer timezone setup failed
to create /etc/wall_cmos_clock when I answered "is CMOS clock
set to UTC?" negatively.

Also, it'd be great if one could choose not to write an emoty
disklabel to the partition, but use an already existing label.

Other than that I think the installer is great. Good work!

        -Richard