Currently we display an error message informing users that they need to add a new user if any of the authentication mechanisms within a realm report that they are not ready to handle requests.

The reason for this was so that if properties backed authentication we available along with local authentication then the local authentication would not prevent the prompt from being displayed.

However there could be additional mechanisms suitable for use with HTTP so we need a small modification to stop taking into account the local authentication mechanism but allow requests in if any of the other HTTP compatible mechanisms are ready to handle requests.