v5.3.0

• Move to a NSURL based way of creating clients.

let socket = SocketIOClient(socketURL: "localhost:8080")

becomes

let socket = SocketIOClient(socketURLString: "http://localhost:8080")

But instead of using a string based init, instead use the NSURL based ones

let socket = SocketIOClient(socketURL: NSURL(string: "http://localhost:8080/")!)

• Move connectParams to the engine