1. Get rid of direct queries to wires and interfaces, use library.

2. Allow node:iface on the command line for ports.

3. Add -i option to print out results in node:iface. Eventually we want
   to flush card.port output, but lets wait on that for a while.

4. Switch from card,port to iface lookups.

5. The DB change adds iface to the port_counters table, no longer using
   card,port. Eventually flush them.