3.0

Version 3.0

Issues: [Issue list](https://github.com/mnapoli/PHP-DI/issues?milestone=5&state=open)

* Configuration changed from scratch: now with PHP array, annotations or reflection
* Setter injection
* Constructor injection
* @Scope annotations
* Major internal refactoring
* Code now follows PSR1 and PSR2 coding styles
* More tests
* ...