Code uploaded to git repo

Finally got around to pushing the current state of the project to the SourceForge git repo. The current code should work on Linux and OSX, but I'll fix the Windows versions soon(tm).

I have removed the old source zips, so currently the only way to obtain the code is to clone the git repo.

A personal note: Some of that code is ancient and pretty embarassing to look at. It'll be refactored eventually.