(svn r9779) -Feature: Add the possiblity to choose different road patterns for towns to use.

Possible patterns are : 
No Road (not available in scenario editor)
Original (for the nostalgics)
Better Roads (same as original, but based on distance of 2 tiles instead of one)
2x2 grids
3x3 grids
Patch by skiddl13

src/settings_gui.cpp

@@ -609,6 +609,7 @@ static const char *_patches_construction[] = {
 	"drag_signals_density",
 	"oil_refinery_limit",
 	"semaphore_build_before",
+	"town_layout",
 };
 
 static const char *_patches_stations[] = {