added: getFQDN (as per Yandy's recent modifications)
changed: getHostname to only output the hostname, not FQDN
added: setLogin (as created by Yandy)
added: getInterfaces to iControl (at last) including output of each's MAC, MTU and status
added: getInterfaceNumber to iControl & main (number of physical interfaces)
added: getVLANNumber (number of L2 interfaces)  to iControl & main
added: getIPNumber to iControl & main
added: getTunnelNumber (IPsec)  to iControl & main