* Updater loop with period and http route
* Using DNS over TLS to update servers
* Better logging
* Remove goroutines for cyberghost updater
* Respects context for servers update (quite slow overall)
* Increase shutdown grace period to 5 seconds
* Update announcement
* Add log lines for each provider update start
- Only a map of allowed input port to interface
- port forwarded is in the map of allowed input ports
- port forwarded has the interface tun0 in this map
- Always allow tcp and udp for allowed input ports
- Port forward state is in openvpn looper only
- Shadowsocks input port allowed on default interface only
- Tinyproxy input port allowed on default interface only
- Ability to enable and disable rules in various loops
- Simplified code overall
- Port forwarding moved into openvpn loop
- Route addition and removal improved
- Refers to #91
- http control server starts without waiting for unbound and/or openvpn
- Trying to get rid of waiter and use channels directly
- Simpler main.go
- More robust logic overall