gluon-batman-on-wan + gluon-luci-portconfig

The now empty gluon-firewall is removed.

This is a simple daemon that will respond to multicast UDP packets
containing the keyword "nodeinfo" with all the information we
currently distribute using alfred.

The daemon will listen on all mesh interface, that is the hard
interfaces batman-adv uses.

gluon-ath9k-workaround: Announce how often the workaround has been trigg...

This will make a node announce all MACs of its interfaces participating
in the batman-adv mesh. This enables other nodes to associate the
announced object with both the data reported by batadv-vis as well as a
simple list of neighbours as output by `iw dev $IFACE station dump`.

The support is still very limited (IPv6-only DNS on WAN doesn't work yet), and
we now need fastd running as root, but apart from that, is should work.

gluon-announce: detach announce.d from alfred

All announce.d scripts have been moved to /lib/gluon/announce/announce.d
The script /lib/gluon/announce/announce.lua will collect all information
and output json.

gluon-ath9k-workaround: Workaround for the ath9k wifi bug.

If the `monitor` attribute in the site.conf is defined, the cron
script is modifed to send debug informations, generated on bug
detection, to given remote host and port,
e.g.: "fda1:384a:74de:4242::2 8090"

Cron script which restarts wifi iff queues are marked stopped.
This script also outputs some debug information to nail
down the problem.

gluon-config-mode retains the luci frontend, all setup scripts and config is
moved to the new package.