version 2.0 Version 2.0 is a complete redesign of the presenter system. - Changed structure to contain Presenters and View Models. Presenters present View Models, and View Models hold the data and logic for rendering a view - Added TreePresenter for rendering a tree/hierarchy of View Models - Added a Buffer class utility - Added CachePresenter to implement caching for view models - Added a ViewListener to hook into [Symfony's HttpKernel](http://symfony.com/doc/current/components/http_kernel/introduction.html) and return a response from the view model returned from the controller. - Added a Provider to work with the Pimple 3.0 service container. - Added a MockPresenter for easy testing - Implemented unit tests with 100% coverage