Initial commit and mods of an ISOLINUX config file from Porteus v2.0
for Byzantium v0.3.2a.

Signed-off-by: The Doctor <drwho@virtadpt.net>
Tweaking things (like text alignment) at the boot splash screen.

Signed-off-by: The Doctor <drwho@virtadpt.net>
Tinkering with the isolinux config file.  It's pretty close to the one
we used from the last release now.

Got rid of the background image that never worked anyway.

Signed-off-by: The Doctor <drwho@virtadpt.net>