Only draw border for solid land

Script might well override a static map, but can't risk it not doing it, and preview completely failing. Better to just not try it for static maps. Some script cfg might help. Could also avoid unnnecessary preview regenerations even if the script was doing nothing at all.

merge

always update. a bit inefficient, but scripts do weird things.

Fix "don't know how to make hwengine.pas" error

no idea what happened to this image... it seems like I'm reverting to most recent revision O_o

pass --prefix to previews too