The GRUB 1 configuration hasn't been working in a while and-- let's face
it-- it's time. So now we have GRUB 2.
It should still work with a serial console though I haven't tested it yet.
Instead of having everything in the root directory, split them in seperate
directories (appliances, scripts, & configs). This makes things a little
tidier.
Also added a now Makefile target, appliance-list, that prints a list of the
available appliances. The split directory change made this easier.