New in 0.52
+* Fixed a small problem with moon rendering.
* Fog color tries to track the sky color at the center of view in sunrise
and sunset situations.
* Optimizations from Norman Vine
* Code fixes and tweaks from Charlie Hotchkiss.
* Added an --enable/disable-sound option.
* Added a pause key "p"
+* Added command line options to specify initial position and orientation.
+* Added command line option to start in paused or unpaused state.
New in 0.51
* Translucent menus
Michael Smith <msmith99@flash.net>
Contributed cockpit graphics, 3d models, logos, and other images.
+ Project Bonanza - http://members.xoom.com/ConceptSim/index.html
U.S. Geological Survey - http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html