Volery 1.2.2

The welcome tour introduced a Dove lane to people whose build does not have one. It listed the three lanes by hand while the app's real lane list has been gated on the build all along, so the public edition described itself wrongly to every new user. The tour now renders the actual lane list, and Settings no longer offers a colour and an avatar for a lane that is not installed. Also: the in-app "What's new" card is working again - it is gated on an exact version match and had been left pointing at 0.77.1, so it silently showed nothing for fifteen releases. Owner build is unchanged in behaviour; it still has all three lanes.