New Version of Companion with Settings Menu.

This version has a settings menu that permits you to set the location
of the rendezvous server. It can also be specified in the connection
box by preceding the code with the server address/hostname and ";" as
in:

  rendezvous.example.com;mycode

Change-Id: If403aa87de608dc5d84b85d0dd26a599945b1f2b