A submodule used instead of direct way of putting files into a repository
so that the official repo won't grow too much in size and since MSVC++
dependencies are not typically needed (on Linux/Mac and Windows with MinGW).
For those who don't need MSVC++ libs, they should just ignore the submodule.
Those who'd like to play with MSVC++ build should invoke:
git submodule init
git submodule update
