Sorry, that it took a little bit longer than expected, but I had a nasty cold on the weekend and then got a little bit side-tracked by two issues in Lux.
Enough excuses, here you can find the sources including the project files for Visual Studio / XCode:
Code documentation is still not finished, but in a useful state and I want to add some new stuff now
You can find the build instructions here: http://www.luxrender.net/wiki/index.php/LuxC4D
If you have any questions, feel free to ask.