* apps/mesh-segm-skel/test-mesh-segm.in: Remove erroneous
	execution permission.
	* apps/mesh-segm-skel/test-mesh-complex-max-curv-extrema.in:
	Add a missing copyright header.

	* tests/core/image/complex_image.hh
	(make_test_bin_2complex_image2d): New function.
	* tests/topo/is_facet.cc,
	* tests/make/detachment.cc,
	* tests/make/attachment.cc:
	New.
	* tests/topo/Makefile.am (check_PROGRAMS): Add is_facet.
	(is_facet_SOURCES): New.
	* tests/make/Makefile.am (check_PROGRAMS): Add attachment and
	detachment.
	(attachment_SOURCES, detachment_SOURCES): New.

	* mln/core/alias/complex_image.hh (mln::bin_2complex_image2d):
	New typedef.

	* mln/topo/is_simple_cell.hh
	(mln::topo::is_simple_cell<I, N, NL, NH>::operator()):
	Replace ad hoc code by a call to is_facet.

	* mln/topo/is_facet.hh (mln::topo::is_facet): Take a binary image
	and a neighborhood as arguments and take the image's values into
	account.

	* mln/make/attachment.hh,
	* mln/make/cell.hh,
	* mln/make/detachment.hh,
	* mln/topo/detach_cell.hh:
	Do not require the face passed as argument to be a facet.

	* mln/topo/skeleton/priority_driven_thinning.hh
	(mln::topo::skeleton::priority_driven_thinning): Catch up
	with mln::topo::skeleton::breadth_first_thinning.
	* mln/topo/detach_point.hh: Turn into a functor to match the new
	interface of thinning algorithms.
	* tests/topo/skeleton/breadth_first_thinning.cc
	* tests/topo/skeleton/breadth_first_thinning_constrained.cc
	* tests/topo/skeleton/priority_driven_thinning.cc
	* tests/topo/skeleton/priority_driven_thinning_constrained.cc:
	Adjust.

	* mln/topo/is_simple_cell.hh
	(mln::topo::is_simple_cell<I, N, NL, NH>::operator()): Here.

	* apps/mesh-segm-skel/mesh-complex-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-max-curv-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-pinv-curv-skel.cc:
	Here.

	* apps/mesh-segm-skel/mesh-complex-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-max-curv-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-pinv-curv-skel.cc:
	Catch up with the new interface of breadth-first thinning and
	auxiliary routines.

	* mln/topo/is_simple_cell.hh: Make this functor more generic.
	* mln/topo/detach_cell.hh (detach): Turn this function into a
	more generic functor.
	* mln/make/attachment.hh (mln::make::attachment)
	* mln/make/detachment.hh (mln::make::detachment):
	Make these routines more generic.
	* mln/topo/skeleton/breadth_first_thinning.hh
	(mln::topo::skeleton::breadth_first_thinning):
	Adjust.
	* headers.mk: Regen.

	* mln/core/routine/mutable_extend.hh: New.
	* headers.mk: Regen.

	* mln/core/image/dmorph/mutable_extension_ima.hh: New.
	* headers.mk: Regen.

	* mln/topo/skeleton/breadth_first_thinning.hh
	(topo::skeleton::breadth_first_thinning)
	* mln/topo/skeleton/priority_driven_thinning.hh
	(topo::skeleton::priority_driven_thinning):
	Here.

	* mln/topo/skeleton/breadth_first_thinning.hh,
	* mln/topo/skeleton/priority_driven_thinning.hh:
	Here.

	* mln/topo/is_n_face.hh: Here, so that the argument of this
	functor (e.g., an iterator) is always converted to the psite
	type.
	* apps/mesh-segm-skel/mesh-complex-max-curv-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-pinv-curv-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-skel.cc:
	Adjust.

	* mln/topo/skeleton/breadth_first_thinning.hh: Remove a comment.
	* mln/topo/skeleton/priority_driven_thinning.hh: Likewise.
	Rename p_queue to queue to avoid confusions with mln::p_queue and
	improve uniformity w.r.t. topo::breadth_first_thinning.

	* mln/topo/skeleton/breadth_first_thinning.hh: Use a p_queue_fast
	site set instead of a pair of p_set's to ensure an actual
	breadth-first processing of sites.

	* mln/topo/is_not_end_point.hh: Here.

	* apps/mesh-segm-skel/mesh-complex-max-curv-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-pinv-curv-skel.cc,
	* apps/mesh-segm-skel/mesh-complex-skel.cc:
	s/detach/detach_cell/.

	* mln/topo/detach.hh (detach): Rename as...
	* mln/topo/detach_cell.hh (detach_cell): ...this, to prevent
	confusions with detach_point.
	* headers.mk: Regen.

	* tests/topo/skeleton/breadth_first_thinning.cc,
	* tests/topo/skeleton/breadth_first_thinning_constrained.cc,
	* tests/topo/skeleton/priority_driven_thinning.cc,
	* tests/topo/skeleton/priority_driven_thinning_constrained.cc:
	New.
	* tests/topo/skeleton/Makefile.am (check_PROGRAMS): Add
	breadth_first_thinning, breadth_first_thinning_constrained,
	priority_driven_thinning and priority_driven_thinning_constrained.
	(breadth_first_thinning_SOURCES)
	(breadth_first_thinning_constrained_SOURCES)
	(priority_driven_thinning_SOURCES)
	(priority_driven_thinning_constrained_SOURCES):
	New.
	(MOSTLYCLEANFILES): Add breadth_first_thinning-small.pbm,
	breadth_first_thinning_constrained-small.pbm,
	priority_driven_thinning-small.pbm and
	priority_driven_thinning_constrained-small.pbm.

	* mln/topo/skeleton/priority_driven_thinning.hh: New.
	* headers.mk: Regen.

	* mln/topo/is_simple_point2d.hh,
	* mln/topo/detach_point.hh,
	* mln/topo/is_not_end_point.hh:
	New.
	* headers.mk: Regen.

	* mln/topo/skeleton/breadth_first_thinning.hh: Here.
	Typos and aesthetic changes.

	* mln/topo/skeleton/breadth_first_thinning.hh: Do not try to
	detach an aldready processed site.

	* mln/topo/skeleton/breadth_first_thinning.hh
	(mln::topo::skeleton::breadth_first_thinning):
	Disable the default value of the 5th argument, which cannot be
	used in practice, since it depends on the parameter H.
	Add a 4-argument overloading to make the `constraint' argument
	optional.

	* mln/make/detachment.hh: Here.
	Typo.
	* mln/topo/detach.hh: Typo.

	* headers.mk, tests/unit_test/unit-tests.mk: Here.

	* mln/io/vtk/save.hh
	(io::vtk::save(const unsigned_2complex_image3df&, const std::string&)):
	New function.
	(io::vtk::internal::unsigned_vtk_saver): New structure.
	* tests/io/vtk/save.cc: Add a tests case for images of unsigneds.
	* tests/io/vtk/Makefile.am (MOSTLYCLEANFILES):
	Add save-tetrahedron-unsigned.vtk.

	* apps/mesh-segm-skel/save_bin_alt.hh
	(mln::io::vtk::save_bin_alt): New function.

	* tests/io/vtk/save.cc: New.
	* tests/io/vtk/Makefile.am: New.
	* tests/io/Makefile.am (SUBDIRS): Add vtk.

	* mln/io/vtk/save.hh: New.

	* mln/topo/skeleton/breadth_first_thinning.hh: Remove a stray
	semicolon at the end of a `for' statement.
	Create psite using the right iterator.

	* apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.in: Here.

	* configure.ac: Configure
	milena/apps/mesh-segm-skel/test-mesh-complex-pinv-curv-segm and
	milena/apps/mesh-segm-skel/test-mesh-complex-pinv-curv-skel.