Some changes in Application, Autoload, Router

- The autoload-function is extracted to Autoload.php and rewritten.
- aDatabase is deleted.
- Namespaces deleted
- Now boot.php is called in the beginning of the application.
- new class Redirect
- new file classList.php including all systemclasses
- Some new functions in Application.php
- Application::run rewritten
- some little bugfixes