How to start Tor only when network works in upstart framework?

[Bill Nottingham]

Colin Walters (walters at verbum.org) said: 
> >  I use NetworkManager to connect to wifi network (WEP encrypted). Tor
> >  daemon should be started after connection established.
> 
> The best fix is for Tor to support dynamic network changes, by
> listening on the system bus for NetworkManager changes itself.

That being said, writing a NetworkManagerDispatcher script may be the
simplest way to hook in.

Bill