Updated box2d from 2.2.1 to 2.3.0

--HG--
branch : box2d-2.3

src/modules/physics/box2d/wrap_PolygonShape.h

@@ -35,6 +35,7 @@ namespace box2d
 
 PolygonShape *luax_checkpolygonshape(lua_State *L, int idx);
 int w_PolygonShape_getPoints(lua_State *L);
+int w_PolygonShape_validate(lua_State *L);
 extern "C" int luaopen_polygonshape(lua_State *L);
 
 } // box2d