PSR-0 deprecated; use PSR-4 instead? 
Reading the [Hello World tutorial](http://socketo.me/docs/hello-world), I found that the tutorial mentions using PSR-0.

I wonder if Ratchet will use [PSR-4](http://www.php-fig.org/psr/psr-4/) standards rather than [PSR-0](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md), as the standard is marked as deprecated on 2014-10-21.
