* mln/core/decorated_image.hh
	(mln::decorated_image<I, D>::rvalue): New typedef.
	(mln::decorated_image<I, D>::lvalue): Set to impl_::lvalue.
	(mln::decorated_image<I, D>::read_): Have it return a rvalue, not
	a value.
	(mln::decorated_image<I, D>::operator()(const psite&) const)
	(mln::decorated_image<I, D>::operator()(const psite&)):
	New operators
	(mln::internal::decorated_image_impl_<I, E>::write_): Fix access
	to delegatee's data.
	* mln/math/abs.hh (mln::level::abs(const value::int_u<n>&)):
	Declare this overload.
	(mln::math::abs(int))
	(mln::math::abs(long))
	(mln::math::abs(float))
	(mln::math::abs(double))
	(mln::math::abs(long double)):
	New overloads.
	* mln/border/fill.hh,
	* mln/level/memset_.hh:
	Include header cstring for std::memset.
	* mln/make/w_window.hh: Wrap long lines.
	* mln/convert/to_image.hh: Likewise.
	(mln::convert::to_image(const Weighted_Window<W>&)): Fill the
	image with zeros before copying weights.
	* mln/convert/to_p_array.hh: Include missing header
	mln/core/concept/image.hh for mln::Image.
	* mln/win/line.hh (mln::win::line<M,i,C>::line): Replace a dynamic
	assertion by a static one.
	* mln/value/float01_.hh
	(mln::trait::value< mln::value::float01_<n> >::min)
	(mln::trait::value< mln::value::float01_<n> >::max)
	(mln::trait::value< mln::value::float01_<n> >::epsilon)
	* mln/value/float01_f.hh
	(mln::trait::value< mln::value::float01_f >::min)
	(mln::trait::value< mln::value::float01_f >::max)
	(mln::trait::value< mln::value::float01_f >::epsilon)
	* mln/value/internal/gray_.hh
	(mln::trait::value< mln::value::internal::gray_<n> >::min)
	(mln::trait::value< mln::value::internal::gray_<n> >::max)
	(mln::trait::value< mln::value::internal::gray_<n> >::epsilon)
	* mln/value/internal/gray_f.hh
	(mln::trait::value< mln::value::internal::gray_f >::min)
	(mln::trait::value< mln::value::internal::gray_f >::max)
	(mln::trait::value< mln::value::internal::gray_f >::epsilon):
	Remove useless `const' qualifier on return type.
	* mln/value/proxy.hh
	(mln::value::proxy<I>::~proxy)
	(mln::value::proxy<const I>::~proxy):
	Change the return type of checked `read_' routine to
	mln_rvalue(I).
	* mln/value/stack.hh
	(mln::value::stack_image<n, I>::read_)
	(mln::value::stack_image<n, I>::operator()(const psite&)):
	Set return type to rvalue.
	* mln/fun/v2v/rgb_to_hsi.hh: Add missing copyright header.
	Add missing header guards.
	Wrap long lines.
	(mln::fun::v2v::f_rgb_to_hsi_<T_hsi>): Remove useless variable.
	* mln/geom/seeds2tiling.hh (mln::geom::impl::seeds2tiling): Add
	braces around inner `if' to avoid (visual) ambiguity w.r.t. a 
	dangling `else'.
	* mln/core/fi_adaptor.hh (mln::fi_adaptor<I>::load): Ensure the
	image is correctly loaded.

	* tests/core/decorated_image.cc: Exercise
	mln::decorated_image< const I, D >.
	* tests/core/fi_adaptor.cc: Use a smaller kernel for the median
	filter.
	Use tests/data.hh and MLN_IMG_DIR to find the img/ dir.
	Don't call display::show.
	* tests/core/w_window1d_int.cc: Use meaninful input.
	Update documentation.
	* tests/linear/log.cc: Update expected values.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@2151 4aad255d-cdde-0310-9447-f3009e2ae8c0