New import/export framework

[Cyrille Berger]

>  ImageMagick's API's fully support getting & setting individual layers of
> formats such as PSD, GIMP, etc.  (PNG doesn't do layers, though MNG does,
> and that works fine with IM).
>
>  Maybe you are just calling it correctly?!?!?

I suppose we do that by using "InsertImageInList" ? Which means that all our 
layers must have the same size ?

-- 
--- Cyrille Berger ---