* mln/core/image/image3d.hh,
	* mln/core/internal/box_impl.hh,
	* mln/core/site_set/box.hh,
	* mln/debug/slices_2d.hh,
	* mln/geom/all.hh,
	* mln/geom/size3d.hh,
	* mln/linear/gaussian.hh,
	* mln/linear/gaussian/impl.hh,
	* mln/make/box3d.hh,
	* mln/make/image.hh,
	* mln/make/image3d.hh,
	* mln/registration/icp.hh,
	* tests/core/alias/box3d.cc,
	* tests/core/image/image3d.cc,
	* tests/geom/Makefile.am,
	* tests/io/pbms/load.cc,
	* tests/io/pgms/load.cc,
	* tests/io/ppms/load.cc: Rename nslices to nslis.

	* mln/geom/nslices.hh,
	* tests/geom/nslices.cc: Rename as...

	* mln/geom/nslis.hh,
	* tests/geom/nslis.cc: ...this.