I decided to include the demo assets in the source control so that people who want to contribute to the project can just check it out and build it, with everything in the right place. Right now, the full version and demo version are identical because I stripped out the 30 turn demo restriction from the code. However, in the future, new races, particles, AI (other than a very basic one), etc that's added will be only in the full version.
I also fixed crashes in loading, and crashes during the game, so it's now playable again, but you'll notice that fleets and ships are missing. I'm done stripping out stuff, now I'm starting to add new stuff back in :) You can now run the game and check out the starlanes and regions.