(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/variables.h

@@ -231,6 +231,8 @@ struct Patches {
 	uint8 initial_city_size; ///< Multiplier for the initial size of the cities compared to towns
 
 	bool pause_on_newgame;   ///< Whether to start new games paused or not.
+
+	TownLayout town_layout;  ///< Select town layout
 };
 
 VARDEF Patches _patches;