ntopng 1.1.4 (new Formula)

Hi,

This is a new Formula for [ntopng](http://www.ntop.org/products/ntop/). 

Let me know if there is any problem.

Thanks,
Filippo

when ntopng is started, it need a SIGINT to be closed. I can do something like that

`#{bin}/ntopng & sleep 10 ; kill $!`

Filippo