After cloning the repository and firing up the solution, I have bumped into a couple of issues.
According to the documentation, I need to create a dummy ASP.NET MVC 4 project, and copy its "packages" directory to the solution.
1) Creating an ASP.NET MVC 4 project does not create a "packages" directory.
2) There is already a "packages" directory in the solution.
Can you please confirm that the documentation is out of date? Or am I doing something fundamentally wrong here?
Secondly, Web.Optimization needs to be installed via NuGet ("Install-Package Microsoft.AspNet.Web.Optimization").