add column for internal port on UPnP status page
make listening on interface rather than IP optional for miniupnp
Fix #3646, Revert part of 082c9d961e and fix highlight selected rules
Merge pull request #1130 from razzfazz/status_upnp_int_port
Merge pull request #1131 from razzfazz/make_upnp_listen_on_if_optional