[Fedora-livecd-list] Pushed a few changes

[Jeremy Katz <katzj redhat com>]

I threw together a few little changes today and pushed them into the
repo.  You can now use $basearch as your repo URL (or in the mirrorlist
URL) and the right thing should happen.  Also, if you include memtest86+
in your manifest, it should land in the boot loader config.  Finally, if
you put kernel-xen in your manifest, that should now work.

And with that, I'm out for the next week.  dmg -- I'll look some more at
the turboinst stuff when I get back.  I also want to try to get the
persistence and other arch bits in pretty soon then.

Jeremy