Added the Multiton class.
Modified the description in the README file.
Added more Singleton tests and corrected/added some docblocks.
Modified the Multiton class and added the tests.
Fixed some docblocks.
Reorganized the tests and grouped the helper classes in subfolders.
Fixed the docblocks again.
Added a Factory class with a interface Forgeable and the Factory tests.
Added an index.php for manual tests.