This commit starts restructuring the documentation and updating it to be
compliant with 0.12.x+ releases.
The main change is that the documentation has been rewritten for the
ground up, and hopefully simplified.
The documentation has been split into an official documentation for
running headscale as a binary under Linux with SystemD and a "community"
provided documentation for Docker.
This should make the two documents a lot easier to read and follow than
the mishmash document we had.
We dont seem to need the wireguard key anymore, we generate a key on
startup based on the new library and the users fetch it from /key.
Clean up app.go and update docs
This commit changes the way CLI and grpc-gateway communicates with the
gRPC backend to socket, instead of localhost. Unauthenticated access now
goes on the socket, while the network interface will require API key (in
the future).
Kristoffer Dalby
Eugen