* olena/oln/value/lut_value_proxy.hh: New.
	* oln/core/typedefs.hh (mutable_fwd_viter_type): Remove virtual
	type declaration.
	(value_proxy_type, mutable_value_proxy_type): New virtual types
	declarations.
	Aesthetic changes.
	* oln/core/abstract/image/value_wise_accessibility/hierarchy.hh
	(image_being_value_wise_random_accessible::fwd_viter_t): Remove
	typedef.
	(image_being_value_wise_random_accessible::value_proxy_t): New
	typedef.
	(image_being_value_wise_random_accessible::value): Return a value
	proxy instead of a value iterator.
	(mutable_image_being_value_wise_random_accessible::fwd_viter_t):
	Remove typedef.
	(mutable_image_being_value_wise_random_accessible::value_proxy_t):
	New typedef.
	(mutable_image_being_value_wise_random_accessible::value)): Return
	a value proxy instead of a value iterator.
	* oln/morpher/with_lut.hh (oln/value/lut_value_proxy.hh): Include
	it.
	(vtypes< morpher::with_lut<Image, Lut> >::value_proxy_type)
	(vtypes< morpher::with_lut<Image, Lut> >::mutable_value_proxy_type):
	New typedefs.
	(single_vtype<morpher::with_lut<Image, Lut>,
	 typedef_::mutable_fwd_viter_type>): Remove single virtual type.
	(oln::morpher::with_lut::fwd_viter_type)
	(oln::morpher::with_lut::mutable_fwd_viter_type): Remove.
	(oln::morpher::with_lut::value_proxy_type)
	(oln::morpher::with_lut::mutable_value_proxy_type): New typedefs.
	(oln::morpher::with_lut::impl_value): Have these methods return
	value proxies instead of value iterators.
	* oln/Makefile.am (nobase_oln_HEADERS): Add
	value/lut_value_proxy.hh.


	Remove oln::mutable_fwd_viter_lut and clean up oln::fwd_viter_lut.

	* olena/oln/core/abstract/iterator_on_values.hh: New.
	* oln/core/internal/fwd_viter_lut.hh:
	(oln::internal::fwd_viter_lut<Exact>): Inherit from
	oln::abstract::iterator_on_values<Exact>.
	s/rvalue_type/value_type/g.
	(oln::internal::fwd_viter_lut(lut_type&, const value_type&)):
	Remove ctor.
	(oln::internal::fwd_viter_lut::start)
	(oln::internal::fwd_viter_lut::next)
	(oln::internal::fwd_viter_lut::invalidate)
	(oln::internal::fwd_viter_lut::is_valid): Rename methods as...
	(oln::internal::fwd_viter_lut::impl_start)
	(oln::internal::fwd_viter_lut::impl_next)
	(oln::internal::fwd_viter_lut::impl_invalidate)
	(oln::internal::fwd_viter_lut::impl_is_valid): ...these.
	* oln/core/gen/fwd_viter_lut.hh (oln::fwd_viter_lut<Lut>):
	s/rvalue_type/value_type/g.
	(oln::fwd_viter_lut::fwd_viter_lut(const Lut&, const rvalue_type&)):
	Remove ctor.
	(oln::fwd_viter_lut::operator rvalue_type): Turn this operator
	into...
	(oln::fwd_viter_lut::impl_to_value): ...this method.
	(oln::mutable_fwd_viter_lut): Remove this class and it virtual
	types.
	(operator<<(std::ostream&, const mutable_fwd_viter_lut<Lut>&)):
	Remove.
	* oln/Makefile.am (nobase_oln_HEADERS): Add
	core/abstract/iterator_on_values.hh


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@701 4aad255d-cdde-0310-9447-f3009e2ae8c0