- preview generation for rubbers, air-mines, crates, barrels
- add map previews for the other 6 TechRacer maps
- make TechRacer (more or less) work out the box
- randomize map by clicking on preview (when map unspecified)
[patterns]
**.h = native
**.c = native
**.cpp = native
**.lua = native
**.txt = native
**.pas = native
**.inc = native
**.hs = native