* Mid-term milestones

Basic privileged local web interface in Lua runnable via bozohttpd,
including:

(a) A few basic displays, made in the dumbest easiest way possible
(e.g., awking through the output of ifconfig(8)) and trivial `advanced
mode' editors for system configuration files:

   - ifconfig output display, /etc/ifconfig.ifN editor
   - dhcpcd status display, /etc/dhcpcd.conf editor
   - npf display with buttons for npfctl operations, /etc/npf.conf editor
   - dhcpd status display, /etc/dhcpd.conf editor
   - blacklistd status display, /etc/blacklistd.conf editor

(b) A built-in example configuration for a NATted LAN from DHCP or
PPPoE, perhaps guessed by choosing the first ethernet interface as
upstream and the remaining ethernet and 802.11 interfaces as LAN.

(c) Automatic revert for all editor changes if no confirmation within
30 sec.

Nice to have:

(d) wpa_supplicant and hostapd display and editor
(e) display of metrics or graphs