* mln/core/image/graph_window_piter.hh: Remove exact() member.

	* mln/core/image/imorph/labeled_image.hh: Reindent.

	* mln/fun/i2v/array.hh: Fix invalid call to nelements().

	* mln/make/relabelfun.hh: Fix invalid results.

	* mln/trait/op/ord.hh: Revamp header.

	* tests/core/image/imorph/labeled_image.cc: Fix invalid use of
	labeled_image.

git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@4408 4aad255d-cdde-0310-9447-f3009e2ae8c0