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.

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.

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.

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.

Closes #31

The bandwidth limit input fields were missing a unit confusing users as to which value should be entered. It's kbit/s for both.

The whole status page should be rewritten ASAP, but this fix will at least
make it work again for now...

Otherwise, the state match doesn't work, not allowing replies to outgoing
packets to get in.