- cell bodies match the shape of the cell (triangulation didn't work correctly because the center of the cell was given in display units while vertices were in sim units)
- ignoring graph edges whose length is zero when generating cells (fixes "invalid left/right normal" errors)
- fixed debug message height not being set correctly
- fixed submarine list not being updated if host has enabled "play yourself"
- fixed "queue empty" error when attempting to download a sub from the server
- maximum number of iterations when carving a path for a cave
- Ruins are visible in sonar
- Fixed ruin generation algorithm occasionally creating too narrow rooms and placing corridors so that they're blocked by corners of a room
- Fix for wall textures being misaligned for map cells with no physics body