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_Contact.h

@@ -33,22 +33,6 @@ namespace box2d
 {
 
 Contact *luax_checkcontact(lua_State *L, int idx);
-int w_Contact_getPositions(lua_State *L);
-int w_Contact_getNormal(lua_State *L);
-int w_Contact_getFriction(lua_State *L);
-int w_Contact_getRestitution(lua_State *L);
-int w_Contact_isEnabled(lua_State *L);
-int w_Contact_isTouching(lua_State *L);
-int w_Contact_setFriction(lua_State *L);
-int w_Contact_setRestitution(lua_State *L);
-int w_Contact_setEnabled(lua_State *L);
-int w_Contact_resetFriction(lua_State *L);
-int w_Contact_resetRestitution(lua_State *L);
-int w_Contact_setTangentSpeed(lua_State *L);
-int w_Contact_getTangentSpeed(lua_State *L);
-int w_Contact_getChildren(lua_State *L);
-int w_Contact_getFixtures(lua_State *L);
-int w_Contact_isDestroyed(lua_State *L);
 extern "C" int luaopen_contact(lua_State *L);
 
 } // box2d