modified:   setup-cdda.sh
			changed all variable names to capital letter names.
modified:   setup-cdda.sh
 Implemented a large part (if not everything) from the dgl-setup-chroot
 script. now need to test everything...

 still left to do:
 - a line in a config file of dgamelaunch must be changed... but which?
 - why won't cataclysm compile? checking in a new system, maybe out of diskspace?
 - more cleaning and checking
 - make everything nicer to look at