Avast ye! Get rid of the unused ships!

It's a shame we can't do in SL what we can do in Garry's Mod, that is make boats which have actual buoyancy so we don't need scripting just to make them float.

On another note, we need a type of invisiprim that only cancels the water effect. You can put the current one in the hull so the water doesn't render inside, but it cuts people's feet off.