games data directory now ${PREFIX}/share/doom, to fit with where other
game ports put their data. Also, fix check for python during configure.
OK sthen@ and phessler@
from the days of DOS. The author, Simon Howard, has worked to insure
Chocolate Doom, which is nothing more than a directly modified version
of the released iD Software source code, has zero changes that affect
gameplay, look, or feel, and also re-created a DOS-like setup program to
configure the game much like the original setup.exe.
from MAINTAINER Ryan Freeman