This is a Module::Build subclass that uses Alien::Build to help create
Alien distributions. The author recommends Alien::Build::MM, which uses
ExtUtils::MakeMaker instead. The primary rationale for this class, is to
prove independence from any particular installer, so that other
installers may be added in the future if they become available. If you
really do prefer to work with Module::Build though, this may be the
installer for you!