The fastd_mesh_vpn site.conf section is renamed to mesh_vpn.fastd.

The ebtables rules were not adjusted when switching from macvlan to veth.

rpcd is not included in our images anymore since switching to gluon-web, so
we don't need to disable it anymore.

This makes the LAN port the PoE master, so the AirGateway can be used to
supply power to another node connected via mesh-on-LAN.

Fixes #608

We always want to prefer the unique node address for outgoing traffic. Note
that this doesn't have an effect with batman-adv, as usually br-client will
be the outgoing interface, so the unique address would be chosen anyways.

This was introduced in ffhh-packages at https://github.com/freifunkhamburg/ffhh-packages/tree/master/gluon-config-mode-reboot-ffhh

Make use of our new _translate() function.

_translate() will return nil when no match is found.

The gluon-web package is basically a stripped-down and refactored version
of the LuCI base.

As convenient as the Map is, the underlying code is very complex and will
be removed.

Add translation support to gluon-status-page, including English, German and Russian translations.

Fixes #1043

In preparation for Babel support.

uradvd will tolerate devices appearing and disappearing during runtime.

These values have been in use in gluon-core for some time, the validators
need to be moved as well.

macvlan interfaces never directly exchange traffic with the underlying
interface, but only with other hosts behind the interface. In consequence,
router advertisements from the uradvd running on br-client could never
reach local-node, preventing it from getting an IPv6 address without RAs
from an external radvd. Fix this be replacing the macvlan interface with
a veth pair (with the peer interface in br-client).

As a side effect, this saves about 5KB of flash, as the veth module is
simpler than macvlan.

When preparing the migration from macvlan to veth for local-node, MAC
address conflicts occurred as some ports of br-client had the same address
as local-node. Reverting the roles of both interfaces fixes this.

By default, br-client is left as an interface without addresses and
firewall rules that drop everything, so the bridge is used to connect its
ports only. gluon-mesh-batman-adv-core changes this to the usual set
of addresses and firewall rules.

Prepare reverting the roles of br-client and local-node to their state
before 8c4403ba.

Also simplify the local_node.peerdns setting.