[mkgmap-dev] Commit: r3175: merge from via_ways branch

Version mkgmap-r3175 was committed by gerd on Thu, 10 Apr 2014 merge from via_ways branch adds support for restriction relations with - via way - restriction no_entry or no_exit - specific vehicle type, e.g. type=restriction:motorcar or restriction:motorcar=no_u_turn - fixes possible error if different roads connect the same nodes (old code possibly saved the restriction for the wrong road) - detects obsolete restrictions, e.g. when a oneway doesn't allow to enter the road or when the restiction applies to motor_vehicles only and the road is a cycleway. - if the style creates multiple routable ways for one OSM way, the restriction is added for all needed combinations