* IPV6/localhost:

      - Enable IPv6 stack in the JVM, hopefully won't break anything
      - Patch Jetty to support binding to IPv6 addresses
      - Allow multiple bind addresses for the router console
        in the clients.config file; for new installs the
        default is now "127.0.0.1,::1"
      - Change most instances of "localhost" to "127.0.0.1"
        throughout the code
    * Router:
      - Move some classes to private static inner