[RFC] Static Application
Hello. 

In one of my application, I need to use WebSocket but also plain HTTP.
I don't want to use 2 different ports (and so servers). I want to use ratchet
to serve both WS and "HTML". I was not able to set-up something quicky.
May be, because I don't know rachet so much. Their is something like that 
in express.js. See this [file](https://github.com/dpb587/ti-debug/blob/master/lib/inspector/service.js) for an exemple.

So something like that could be AWESOME (and perfectible):

``` php
$ratchet->on('/websocket/chat', new Application());
$ratchet->on('/.*', function(Request $requet) use ($webdir) {
    $p = $webdir.'/'.$request->getPathInfo();
    if (file_exists($p)) {
        return fopen($p);
    }

    throw new NotFoundHttpException();
});
```

WDYT ?
