This can be used to add custom lobbies to the game, otherwise there's no
way to normally. (The retail client will use the built-in URLs in the
executable, the launcher doesn't pass any.)
This is useful for sniffing non-web browser launcher traffic that goes
through WinHTTP. Thanks to NotNite for the initial hooking code.
Also when no launcher URL is configured, it should fall back to the
official URL now.
