Build refcatabyss as C99, cut down audiohead to actual contents (Shareware v1.13)
Now this should basically be like it was based on Catacomb Shareware v1.13 (although with a few modifications we can get the v1.24 sources behaviors). It doesn't "invoke" loadscn2, which differs from Keen Dreams', though.
Fix aspect correction for text mode
A few host graphics optimizations and other modifications
Updated README