Imported some of the dynamiccore branch from love-experiments:

- Type names for love's Lua objects are specified as an argument to luax_register_type, rather than being statically defined in an array.

- luax_register_type takes a variable number of method array arguments, for registering superclass methods without copying them into the subclass' method array.

Also removed most of the header declarations for wrapper functions.

src/modules/physics/box2d/wrap_CircleShape.h

@@ -34,10 +34,6 @@ namespace box2d
 {
 
 CircleShape *luax_checkcircleshape(lua_State *L, int idx);
-int w_CircleShape_getRadius(lua_State *L);
-int w_CircleShape_setRadius(lua_State *L);
-int w_CircleShape_getPoint(lua_State *L);
-int w_CircleShape_setPoint(lua_State *L);
 extern "C" int luaopen_circleshape(lua_State *L);
 
 } // box2d