- Resolves: rhbz#1427720, if --mellon-root is not supplied and defaults to /
      you end up with double slashes in entityId and endpoints
    - add --tls-verify option to control python-requests behavor when
      using tls to connect. With this option you can use a self-signed
      cert or point to a CA bundle.
    - Fix warnings and checks when using client originate method
      'registration' with 'anonymous' authentication.