Show errors coming from the server in the console.
A little bit cleaner error sending - just so I can keep track of what exceptions happen where when I am looking at the client.
Move this generic version of handle message into the prototype - we can leave the updated version in the brogue controller as an override.
Updated the brogue controller to match the new handler format of the authentication controller - but with an override for handleIncomingMessage so we can split up binary data and non-binary data.