fix(authentication-client): Reset authentication promise on socket disconnect

[daffl]

This PR updates the authentication client to defer authentication as soon as a socket disconnects instead of only on socket reconnect because calls made while disconnected will still get a NotAuthenticated errors.

[marshallswain]

Not sure what Code Climate's deal is, but everything else look like

[KidkArolis]

Tested in my app and it works great, much simpler than what I was doing.