New Configuration UI!

This release provides a new console-based configuration UI which adds the ability to adjust FreeDV (radio) mode, encryption, and Push to Talk settings. It also adds diagnostic functions like displaying the OS startup messages in a navigation window and shell access for expert users.

The road to 1.0.0 is deferred a bit longer, but we are getting there; and a configuration UI (even a basic one as this admittedly is) is a major step toward that end.