First try of a basic MVC implementation

I did some work on my personal idea of how a basic MVC structure could be implemented without using a framework. This first idea comes with a PSR-0 autoloader if namespaces should be used and a basic autoloader for the app directory, which keeps the controllers & models in the global namespace. Also a small dependecy injector is included for resolving dependencies injected in the constructor methods inside a controller.

What do you think?