fixed return type for tagtypes name, tagref

OSMDatastructure/Tag.cs

@@ -30,6 +30,10 @@ public class Tag
                 case TagType.id:
                     this.value = value.GetUInt64();
                     break;
+                case TagType.name:
+                case TagType.tagref:
+                    this.value = value.GetString();
+                    break;
                 default:
                     this.value = value;
                     break;
@@ -123,7 +127,7 @@ public class Tag
         { WayType.living_street, 10 },
         { WayType.service, 1 },
         { WayType.pedestrian, 0 },
-        { WayType.track, 15 },
+        { WayType.track, 1 },
         { WayType.bus_guideway, 0 },
         { WayType.escape, 0 },
         { WayType.raceway, 0 },