* tests/core/subset.cc: New.
	* tests/core/Makefile.am: Update.
	* oln/debug/println.hh: New.
	* oln/core/internal/op_image_restricted_to_pset.hh: New.
	* oln/debug/print.hh: Fix copyright.
	* oln/core/concept/image.hh (bbox): Provide a final impl.
	* oln/core/rle/rle_image.hh,
	* oln/core/concept/image_identity.hh,
	* oln/core/sparse/sparse_image.hh,
	* oln/core/1d/image1d.hh
	* oln/core/1d/image1d_b.hh
	* oln/core/2d/image2d.hh
	* oln/core/2d/image2d_b.hh: Update.
	* oln/core/concept/neighborhood.hh (oln_decl_op_plus): Move to...
	* oln/core/gen/neighb.hh: ...this file.
	* oln/core/gen/op.hh (oln_decl_op_restricted_to, restricted_to):
	New.
	* oln/core/internal/point_set_base.hh (category): New.
	* oln/core/internal/op_image_plus_nbh.hh: Add static assert.
	* oln/core/internal/image_base.hh (include): Add
	op_image_restricted_to_pset.hh.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@877 4aad255d-cdde-0310-9447-f3009e2ae8c0