[rootw0rm]

Easily build VirtualBox for Windows

https://github.com/rootw0rm/VirtualBox-EzBuild

barely tested, probably plenty of bugs, but it's working for me. after switching to latest version (5.1.12), the builds started going a lot better and this seems a lot less necessary than before.
next up: upgrade Microsoft toolset & generate visual studio project files for VirtualBox

[rootw0rm]

I've added 185 Visual Studio 2015 project files. You can't build VirtualBox with them yet, but they have all the proper includes, defines, compiler/linker options, etc. Now at least if anyone wants to they can use a kickass IDE to work on the source code. They only work with the directory structure created by VirtualBox-EzBuild.

I'll add an option to VirtualBox-EzBuild later which will let you build specific projects. In the mean time, I'm sure anyone working on the source can manage to modify the .bat file to chdir and run kmk.