That UI tho

[eyedeekay]

I need to finally get around to replacing the crude, hardwired webUI with an RPC interface, but that's really about the least of it. Right now there's no way to add a new tunnel to the webUI without restarting entirely or starting a new instance on a different port. The RPC interface should accept a method which allows the user to input a config file to set up a tunnel. It should be capable of deleting a tunnel. It should be capable of stopping, starting, and restarting a tunnel(By name) and it should be able to adjust tunnel settings that do not require a restart without restarting(This may require additional features in the upstream libraries, goSam and sam3).

cc @postables, this RPC interface will automatically be compatible with libanonvpn and can be the basis for other components.