*  mln/io/freeimage_plugin.hpp: RGB(A)16 writing support.

	*  mln/core/math_ops.hpp,
	*  mln/core/vec/vec_math_ops.hpp: l2dist, l2dist_sqr
	*  mln/core/vec_base.hpp: explicit conversion from other tags.

	*  mln/core/trace.hpp: thread local stack.

	*  mln/transform/chamfer_distance_transform.hpp,
	*  tests/CMakeLists.txt,
	*  tests/transform/CMakeLists.txt,
	*  tests/transform/chamfer_distance_transform.cpp: New.

	*  mln/core/image/ndimage_iter.hpp,
	*  mln/core/image/ndimage_pixel_iterator.hpp Fixed.

accu_as_it and variance accus.

	*  mln/accu/accumulators/accu_as_it.hpp,
	*  mln/accu/accumulators/max_elements.hpp,
	*  mln/accu/accumulators/min_elements.hpp,
	*  mln/accu/accumulators/moment_of_inertia.hpp: New
	*  mln/accu/accumulators/variance.hpp: Add mean extraction.
	*  tests/accu/CMakeLists.txt,
	*  tests/accu/max_elements.cpp,
	*  tests/accu/min_elements.cpp,
	*  tests/accu/moment_of_inertia.cpp: New.

	*  tests/morpho/CMakeLists.txt,
	*  tests/morpho/alphatree/CMakeLists.txt,
	*  tests/morpho/alphatree/alphatree.cpp,
	*  mln/morpho/alphatree/alphatree.hpp,
	*  mln/morpho/component_tree/cuts.hpp: New.

	*  mln/morpho/component_tree/accumulate.hpp: Set default require order to false
	*  mln/morpho/component_tree/filtering.hpp: Fix for non writable attribute map.
	*  mln/morpho/component_tree/io.hpp: Add overload facilities.
	*  mln/morpho/component_tree/reconstruction.hpp: Add overload.
	*  mln/morpho/datastruct/component_tree.hpp: Add realsize and shrink_to_fit methods.

	*  cli/CMakeLists.txt,
	*  cli/recompose_channels.cpp: New.

	* mln/contrib/meanshift/meanshift.hpp,
	* tests/contrib/meanshift/meanshift.cpp: New.

	* mln/morpho/algebraic_filter.hpp: Fix default arg redefinition.
	* mln/morpho/closing_by_reconstruction.hpp: Fix guard.

	* cli/CMakeLists.txt,
	* cli/dilate.cpp: New.

	* apps/qcm/Makefile: Add link to boost program options.
	* apps/qcm/qcm.cpp: Use milena's opning impl.
	* apps/qcm/qcm.py: Python script for grading.

        * mln/core/algorithm/transpose.hpp: New.
 	* mln/morpho/canvas/dilation_like.hpp,
	* mln/morpho/canvas/dilation_like.spe.hpp: New.
	* mln/morpho/dilate.hpp,
	* mln/morpho/erode.hpp,
	* mln/morpho/gradient.hpp,
	* mln/morpho/opening.hpp: Moved and modified to...
	* mln/morpho/structural/closing.hpp,
	* mln/morpho/structural/dilate.hpp,
	* mln/morpho/structural/erode.hpp,
	* mln/morpho/structural/gradient.hpp,
	* mln/morpho/structural/opening.hpp: ... these files.
	* tests/morpho/CMakeLists.txt,
	* tests/morpho/dilate.cpp,
	* tests/morpho/erode.cpp,
	* tests/morpho/gradient.cpp,
	* tests/morpho/opening.cpp,

(the constant image is indexable).

	* mln/core/image/constant_image.hpp: Add index() method.

	* mln/core/image/morphers/details/morpher_core_access.hpp,
	* mln/core/image/morphers/morpher_base.hpp,
	* mln/core/pixel_utility.hpp: Clean.

	* mln/accu/accumulators/h_infsup.hpp: New.

has_untake traits.

	* mln/accu/accumulator.hpp,
	* mln/accu/accumulator_base.hpp,
	* mln/accu/accumulators/count.hpp,
	* mln/accu/accumulators/infsup.hpp,
	* mln/accu/accumulators/sum.hpp,
	* mln/accu/composite_accumulator.hpp: Support for untake
	* mln/core/concept/accumulator.hpp: Move to...
	* mln/accu/concept/accumulator.hpp.

	* mln/core/neighborhood/neighborhood_base.hpp,
	* mln/core/neighborhood/neighborhood_traits.hpp: Minor changes,
	* mln/core/se/ball.hpp: New.
	* mln/core/win2d.hpp: Add inc/dec methods.

range do not provide such functionality.

	* mln/core/image/sub_image.hpp: Use rng::has.
	* mln/core/range/has.hpp: New.
	* mln/core/range/range.hpp: include mln/core/range/has.hpp.

by the incremental versions of kernel processing algorithms. This
is backward compatible with already defined iterator if they use
the iterator_base interface.

	* mln/core/concept/iterator.hpp,
	* mln/core/iterator/iterator_base.hpp,
	* mln/core/iterator/iterator_traits.hpp,
	* mln/core/iterator/transform_iterator.hpp,
	* mln/core/iterator/zip_iterator.hpp: Add has_NL() method.

	* mln/kernelv2/aggregate/inf.hpp,
	* mln/kernelv2/aggregate/max.hpp,
	* mln/kernelv2/aggregate/sup.hpp,
	* mln/kernelv2/debug.hpp,
	* mln/kernelv2/details/context.hpp,
	* mln/kernelv2/details/deep_copy_fix.hpp,
	* mln/kernelv2/details/eval_context.hpp,
	* mln/kernelv2/details/expressions.hpp,
	* mln/kernelv2/details/expressions_traits.hpp,
	* mln/kernelv2/details/inner_context.hpp,
	* mln/kernelv2/details/pixter_wrapper.hpp,
	* mln/kernelv2/details/tags.hpp,
	* mln/kernelv2/execute.hpp,
	* mln/kernelv2/execute_incremental.hpp,
	* mln/kernelv2/kernel.hpp,
	* mln/kernelv2/types.hpp: New.

	* apps/CMakeLists.txt,
	* apps/attributes/meaningfullness.hpp,
	* apps/g2/CMakeLists.txt,
	* apps/g2/satmaxtree.cpp,
	* apps/tests/attributes/meaningfullness.cpp,
	* apps/tos/Kinterpolate.hpp,
	* apps/tos/mumford_shah.hpp,
	* apps/tos/topology.hpp,

        * mln/morpho/tos/ctos.hpp,
        * mln/morpho/tos/tos.hpp: Fixed.

	* cmake/FindFreeImage.cmake,
	* CMakeLists.txt: Check the availability of sub-libraries in the main
          Makefile.

	* apps/imview/CMakeLists.txt,
	* apps/saliency/CMakeLists.txt,
	* apps/simplification/CMakeLists.txt,
	* apps/supervised-gui/CMakeLists.txt: Conditional compilation if
        QT4 is available.

	* apps/maxtree_comparison/CMakeLists.txt,
	* apps/clattice/CMakeLists.txt,
	* apps/tests/attributes/CMakeLists.txt,
	* apps/tests/tos/CMakeLists.txt,
	* apps/tosgui/CMakeLists.txt,
	* bench/CMakeLists.txt,
	* cli/CMakeLists.txt,
	* tests/io/CMakeLists.txt,
	* tests/morpho/CMakeLists.txt,
	* tests/morpho/component_tree/CMakeLists.txt: Remove hard-coding
        of FreeImage linking and use ${FreeImage_LIBRARIES} instead.

and breaks old code in kernel framework.

	* mln/kernel/context.hpp,
	* mln/kernel/execute.hpp,
	* mln/kernel/kernel.hpp: Fixed result_of issue.

	* mln/core/image/morphers/transformed_image.hpp,
	* tests/core/image/morphers/transformed_image.cpp: Fixed.

to POD initialization, warnings and default argument in signatures.

	* mln/core/algorithm/accumulate.hpp,
	* mln/core/algorithm/sort_indexes.hpp,
	* mln/core/image/constant_image.hpp,
	* mln/core/image/image_routines.hpp,
	* mln/core/image/ndimage.hpp,
	* mln/core/iterator/stditerator.hpp,
	* mln/core/neighb2d.hpp,
	* mln/core/neighborhood/sliding_pixter.hpp,
	* mln/core/win2d.hpp,
	* mln/io/imprint.hpp,
	* mln/io/loader.hpp,
	* mln/io/plugin.hpp,
	* mln/morpho/datastruct/image_property_map.hpp,
	* mln/morpho/extinction.hpp,
	* mln/morpho/maxtree/maxtree_queue.hpp,
	* mln/morpho/pqueue_fast.hpp,
	* tests/bench_iterator.cpp,
	* tests/bench_zip_iterator.cpp,
	* tests/core/image/morphers/filtered_image.cpp: Fixed.

declaration of template class but it is not C++ standard compliant and
clang issues a compilation error.

	* mln/core/concept/accumulator.hpp,
	* mln/core/concept/check.hpp,
	* mln/core/concept/extension.hpp,
	* mln/core/concept/image.hpp,
	* mln/core/concept/iterator.hpp: Fixed for clang compilation.

compile with clang.

	* mln/accu/accumulators/count.hpp,
	* mln/accu/accumulators/infsup.hpp,
	* mln/accu/accumulators/max.hpp,
	* mln/accu/accumulators/mean.hpp,
	* mln/accu/accumulators/min.hpp,
	* mln/accu/accumulators/minmax.hpp,
	* mln/accu/accumulators/sum.hpp: Fix fwd declaration for clang.

	*  apps/supervised-gui/CMakeLists.txt,
	*  apps/supervised-gui/brush.cpp,
	*  apps/supervised-gui/brush.hpp,
	*  apps/supervised-gui/compute_distance.hpp,
	*  apps/supervised-gui/constants.hpp,
	*  apps/supervised-gui/supervised-cli.cpp,
	*  apps/supervised-gui/supervised-gui-3c.cpp: 3-classes based app.

	*  apps/CMakeLists.txt,
	*  apps/attributes/gradient_magnitude.hpp: Add gradient on 0F too.
	*  apps/mumford_shah_on_tree/CMakeLists.txt,
	*  apps/mumford_shah_on_tree/mumford_shah_on_tree.cpp,
	*  apps/mumford_shah_on_tree/mumford_shah_on_tree.hpp,
	*  apps/mumford_shah_on_tree/mumford_shah_on_tree_full.cpp: New.

	*  apps/g2/CMakeLists.txt,
	*  apps/g2/compute_g2.cpp,
	*  apps/g2/compute_g2.hpp,
	*  apps/g2/g2-maxdepth.cpp,
	*  apps/g2/routines.cpp,
	*  apps/g2/routines.hpp,
	*  apps/g2/types.hpp: Clean up.

	*  apps/tos/addborder.hpp: add a border processed marginally.
	*  apps/tos/croutines.hpp: add a grain_filter_inplace routine.

	*  cli/CMakeLists.txt,
	*  cli/area_close.cpp,
	*  cli/grain_filter.cpp: Fixed.
	*  cli/decompose_channels.cpp,
	*  cli/lab2rgb.cpp,
	*  cli/rgb2lab.cpp: New.

of an image to use the whole value dynamic.

	*  mln/data/stretch.hpp: New.

	*  mln/core/vec/vec_math_ops.hpp: Pow operation.

	*  mln/colors/lab.hpp,
	*  mln/colors/xyz.hpp: Fix coefficients and add back conversion.

	*  mln/accu/accumulators/accu_as_it.hpp: New. An accumulator
		wrapper whose return value is the accumlator itself.
	*  mln/accu/accumulators/variance.hpp: Add untake support.

	*  mln/io/freeimage_plugin.hpp: rgb/rgba float support.