Enables multiple protocols like fastcgi or HTTP to bind to. This makes
it more flexible to use.
Also, a little fix for __netbox was done: correctly output a error msg.
The wrapper service will "control" the services added from the
__netbox_* types to provide a general interface. This is more dynamic
than the alias approach used previously. Through this, it is possible
to handle multiple wsgi services for netbox - if this works ..
See as a reference:
http://alesnosek.com/blog/2016/12/04/controlling-a-multi-service-application-with-systemd/
matze