Adding M-x iwconfig to net-utils.el

[Yoni Rabkin]

Hello,

I've added to wireless.el (a small library of mine) the ability to call
iwconfig diagnostically via "M-x iwconfig", as per the interface
net-utils.el provides to ifconfig, netstat etc.

It occurs to me that the right place for this might be in net-utils.el
itself.

If people agree that this is worth adding, I will gladly send in the
trivial patch against net-utils.el which does this.

-- 
   "Cut your own wood and it will warm you twice"