* mln/core/decorated_image.hh
	(helper_decorated_image_write_): Replace by...
	(decorated_image_impl_): ...this.
	(impl_): New.
	(lvalue): Update.
	(write_): Remove; now in impl_.

	* mln/value/all.hh: Update.
	* mln/value/props.hh,
	* mln/value/int_u.hh,
	* mln/value/int_s.hh (min, max): Change to proc.
	* mln/value/props.hh (mln_min, mln_max): Update.
	(epsilon): Change to proc.
	* mln/value/aliases.hh: New.
	* mln/level/stretch.hh: Update.

	* mln/arith/abs.hh: New.
	* mln/arith/plus.hh: Overload.
	* mln/fun/v2v/abs.hh: New.
	* mln/level/apply.hh: Fix meaning; add todo.
	* mln/math/abs.hh: Overload.

	* mln/core/concept/iterator.hh (for_all_3): New.
	* mln/math/round_sat.hh: New.
	* mln/make/w_window_line.hh: New.
	* mln/metal/abort.hh: New.
	* mln/linear/line_convolve.hh: New.
	* mln/linear/line_x2_convolve.hh: New.
	* mln/linear/sobel.hh: New.
	* tests/line_convolve.cc: New.
	* tests/sobel.cc: New.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@1055 4aad255d-cdde-0310-9447-f3009e2ae8c0