Add ability to view ip addresses with node &nodelist.js

It may be useful for the sysop to view IP addresses for the nodes that are connecting or connected via the node or nodelist.js utilities.

As discussed on irc, please add this ability for sysop users.

added feature label

assigned to @rswindell

Commit b4639b0f addressed this request for the node utility.

A request for JavaScript-based node status display should be a separate request.

closed