Make love::Type handle type names

TODO: Fix undefined behaviour in luax_register_type, you can't use a va_list after a reference type

--HG--
branch : dynamiccore2

src/modules/physics/box2d/PolygonShape.cpp

@@ -34,7 +34,7 @@ namespace physics
 namespace box2d
 {
 
-love::Type PolygonShape::type(&Shape::type);
+love::Type PolygonShape::type("PolygonShape", &Shape::type);
 
 PolygonShape::PolygonShape(b2PolygonShape *p, bool own)
 	: Shape(p, own)