* fix bug, 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.