Merge dynamiccore2 into minor

Instead of a global type enum and bitfield, all types now have their own
love::Type static member. This means they automatically assign their ids, build
their bitsets, etc. As a bonus, it simplifies wrapper code since most functions
already know which type they're pushing to or getting from lua, so they can
directly get the static member (if it's called 'type').

--HG--
branch : minor

src/modules/graphics/opengl/Image.cpp

@@ -43,6 +43,8 @@ namespace graphics
 namespace opengl
 {
 
+love::Type Image::type("Image", &Texture::type);
+
 int Image::imageCount = 0;
 
 float Image::maxMipmapSharpness = 0.0f;