Assorted news #1024

*hrmmpf*New FreeOrion 0.43 release.Unvanquished Alpha 18.Some news from the standalone idTech4 Hexen remake.Open-source reimplementation of Caesar3 engine picked up again.OpenMW 0.25.0 released.New Ya3dag 1.42 release.Files of the Open(GameArt)Bundle r…