version 4.0
May 29, 2002
T. Repetti

version 4.1
June 2002 TJ
updated palette
applied new grid
masked grid coords
cleaned stray pixels
adjusted DenseJungle overlay
adjusted Ford overlays
adjusted NoBridge overlays
adjusted NoRoads overlay
adjusted RoadsToPaths overlay
added missing SRT overlays
adjusted SRT overlays
edited overlaySSR

version 4.2
June 2002 TJ
cleaned stray pixels
edited data
edited overlaySSR

version 4.3
July 2002 TJ
added Bridge overlays
modified SRT bridge overlays
edited data
edited overlaySSR

version 4.4
August 2002 TJ
repaired Bridge overlays
