Next\Components\Iterator\AbstractCollection
- Changed the behavior of AbstractCollection::contains() increasing
performance almost twice as much (Resolves #18)

Next\Controller\Router\Standard
- Reverting changes made in c19f715

Next\Tools\RoutesGenerator\Annotations\Actions
- Structure fixes and boundary spaces wrongly removed in commit 33acab9
added again, allowing the custom-defined arguments, required or
optional, to work as intended again

- Minor performance update and extra spaces removal