This is now a Restful authenticator and is updated to use a setup.properties and a run.properties file.
Implement the Authenticator interface 4.5.0 with the getDescription() call and support multiple containers.
Re-packaging as a simple .war file to support the normal "setup" script. The mnemonic in authn_simple.properties.example is now "simple". It can now also be installed with an empty list of users.