* oln/core/impl/image_impl.hh,
	oln/core/impl/image_array.hh,
	oln/core/impl/image_array1d.hh,
	oln/core/impl/image_array2d.hh,
	oln/core/impl/image_array3d.hh: Remove image type
	parameterization.

	* oln/core/image1d.hh,
	oln/core/image2d.hh,
	oln/core/image3d.hh: Adjust consequently. Move calls to
	data->ref()...

	* oln/core/abstract/image_with_impl.hh: ...here.

	* olena/oln/core/image.hh: Fix constructors.

	* tests/core/tests/image2: Adapt and fix.

from  Nicolas Burrus  <burrus_n@lrde.epita.fr>

	* mlc/type.hh: Fix mlc_init_static_hierarchy.

    prcs2git-id: 2003paradigm.106