Windlight

How ever good windlight looks, it's somehow broken, the source code can't compile. There is a error about that in the JIRA. Some header files are missing from the library files at least. (glh/glh_linear.h), the include names and the layout in the nVidia headers i have found suggests that there are some modification done to these headers, they don't like to be in the glh/ subdirectory by default. I think the export of the source code have gone wrong at LL. One more think that points to how expensive it it to walk half-hearted into open source. When one starts to duplicate information, there will be more errors. One place contains a number of errors in the information, two places the double amount of errors, and usually not the same errors.

I hope that these error soon can be fixed with a new source code release from LL, at least in the subversion that contains the layout and maybe changes of the nvidia headers.