credit everyone who has contributed to this project.
+A1 Free Sounds <techie@mail.ev1.net> http://www.a1freesoundeffects.com
+ Granted permission for the flightgear project to use some of the
+ sound effects from their site.
+
+
Raul Alonzo <amil@las.es>
Mr. Alonzo is the author of Ssystem and provided his kind permission
for using the moon texture. I also used parts of his code as a template