* fixes CC-355: expose internal services using host networking namespace to avoid docker-proxy for internal services

```
dgarcia@dgarcia-desktop:~/src/europa/src/golang/src/github.com/control-center/serviced⟫ sudo netstat -pant | grep LISTEN | grep 2181
tcp6       0      0 :::2181                 :::*                    LISTEN      17544/java      
tcp6       0      0 :::12181                :::*                    LISTEN      17564/java      
```