* mln/accu/stat/histo1d.hh: New header file.
	* mln/accu/stat/histo2d.hh: New header file.
	* mln/accu/stat/histo3d_hsl.hh: New header file.
	* mln/accu/stat/histo3d_rgb.hh: New header file.
	* mln/clustering/k_mean.hh: New header file.
	* mln/clustering/kmean1d.hh: New header file.
	* mln/clustering/kmean2d.hh: New header file.
	* mln/clustering/kmean3d.hh: New header file.
	* mln/clustering/kmean_rgb.hh: New header file.
	* mln/display/display_histo.hh: New header file.
	* mln/display/project_histo.hh: New header file.
	* mln/fun/p2b/achromatic.hh: New header file.
	* mln/fun/p2b/component_equals.hh: New header file.
	* mln/fun/v2v/achromatism.hh: New header file.
	* mln/fun/v2v/hue_concentration.hh: New header file.
	* mln/fun/v2v/int_u16_to_int_u14.hh: New header file.
	* mln/fun/v2v/int_u16_to_int_u14.hh: New header file.
	* mln/fun/v2v/log.hh: New header file.
	* mln/fun/v2v/rg_to_rgb.hh: New header file.
	* mln/fun/v2v/rgb8_to_int_u8: New header file.
	* mln/fun/v2v/rgb_to_achromastism_map.hh: New header file.
	* mln/fun/v2v/rgb_to_hsv.hh: New header file.
	* mln/fun/v2v/rgb_to_hue_map.hh: New header file.
	* mln/fun/v2v/rgb_to_saturation_map.hh: New header file.
	* mln/fun/v2v/rgb_to_value_map.hh: New header file.
	* mln/img_path.hh: New header file.
	* mln/io/plot/save_image_sh.hh: New header file.
	* mln/math/cell.hh: New header file.
	* mln/math/floor.hh: New header file.
	* tests/accu/stat/histo1d/Makefile.am: New makefile.
	* tests/accu/stat/histo1d/histo1d.cc: New source.
	* tests/accu/stat/histo2d/Makefile.am: New makefile.
	* tests/accu/stat/histo2d/histo2d.cc: New source.