wss returns Blob as message

[crookse]

When using wss, the following code in client.js shows that a Blob is returned

https://github.com/drashland/sockets/blob/61e744d0f9bdc37fae193a590964a35c43708e3e/client.js#L110

We need to read the Blob message as text so that we can properly handle wss messages.

[saragee3]

Eric said so : P