Arraybuffer support?
Hi there,

I'm actually using ngWebsocket (Angular plugin) to establish an Websocket connection. I also use msgpack (binary-JSON) to encode/decode datas but it looks like I can't transfert anything to Ratchet: the connection is closed as soon as I send the encoded message.

Here is the js code I am using:

``` javascript
                 // Instance of ngWebsocket, handled by $websocket service
                Adelaide.interfaces.Websocket.$transit = $websocket.$new({
                    url: 'ws://10.211.55.5/',
                    //lazy: true,
                    //enqueue: true,
                    reconnect: false,
                    reconnectInterval: 10000,
                });
                Adelaide.interfaces.Websocket.$transit.$on('$open', function() {

                    // Use only ArrayBuffer data
                    Adelaide.interfaces.Websocket.$transit.$$ws.binaryType = 'arraybuffer';

                    console.log('websocket: open');
                    Adelaide.interfaces.Websocket.$transit.$emit('ping', 482938239); // send a message to the websocket server
                    Adelaide.interfaces.Websocket.$transit.$emit('ping', 4235241); // send a message to the websocket server
                });
                Adelaide.interfaces.Websocket.$transit.$on('$close', function () {
                    console.log('websocket: closed');
                });
```

This is what I get when I send the message:
![screen shot 2015-02-04 at 10 02 01](https://cloud.githubusercontent.com/assets/2057765/6037547/102ff060-ac55-11e4-956e-1ffd49f785e9.png)

Is Ratchet do not support ArrayBuffer yet or it is me?

Thanks for your help.
