Large refactoring: proxy+firewall+readme

- Cleaner logs
- HTTP proxy is working... finally
- Firewall was adjusted
- Firewall cannot be turned off anymore
- portforward script changes the firewall
- readme reworked
- Possibility to pass commands to Openvpn with Docker command

docker-compose.yml

@@ -12,6 +12,7 @@ services:
     init: true
     ports:
       - 8888:8888/tcp
+    command: 
     environment:
       - USER=js89ds7
       - PASSWORD=8fd9s239G