[CMake] CMake and VC-80 configurations

[Alex Makarenko]

> There is some documentation in the CMake book.  There is also a
> user-maintained list here:
>
> http://www.cmake.org/Wiki/CMake_Useful_Variables
>
> We would like to auto-generate documentation for variables as is done
> for commands but it is not yet implemented.

Thanks Brad, an exhaustive list with even minimum explanations would be very 
useful.

alex