ADD: Separately defineable station coverage area for factories (default: 1 tile).
- Usage in simuconf.tab: station_coverage_size_factories = 1.
- Usage in GUI: station coverage for factories will be shown when selecting a goods station/stop, otherwise station coverage for passengers will be shown. Hold down SHIFT whilst selecting the stop from the menu to show the non-default option.
CHANGE: Fields around farms can now be removed until no less than half the specified minimum number remain. This allows for road connexions to the door of farms.