* Added INSTALL and game/Makefile.am to the repository
* Re-added game/q_shared.(c|h) to the repository -- ideally
game.so will make callbacks into quake2, this is only
"temporary" (famous last words)
what broke; mainly typecasts. I've disabled -pedantic again
though, as there are some bugs in svgalib and libc headers
that prevent compilation with -pedantic. I also didn't
bother to set explicit casts in linux/qgl_linux.c