CD-ROM set to host drive no longer gets reset to empty;
The CD audio thread initializer now ignores the mute status of the drives;
CD-ROM IOCTL audio handler is now more thread-safe;
Fixed CD-ROM image audio;
Added more sanity checks to memory read/write code in 808x.c;
Initial settings are now sane again.
Overhauled the configuration files so that the global variables are now subdivided into sections;
Fixed CD-ROM MODE SENSE page 0x2A which was being incorrectly reported as not implemented, fixes among other things Rayman 1 and Spellcross: The Last Battle (both now see the CD-ROM and play CD Audio fine).
