* scribo/core/component_set.hh: Update FIXMEs.
	(update_labeled_image_()): New method.

	* scribo/core/def/color_type.hh: Introduce a new global type.

	* scribo/core/line_info.hh: Compute line pixels area and order
	component list by localization.

	* scribo/core/line_set.hh: Add operator<<.

	* scribo/core/object_groups.hh,
	* scribo/core/object_links.hh (is_valid(unsigned)): new method.

	* scribo/debug/links_image.hh: Make bounding box drawing optional.

	* scribo/filter/object_groups_small.hh: Return a temporary result.

	* scribo/filter/objects_h_thick.hh,
	* scribo/filter/objects_h_thin.hh,
	* scribo/filter/objects_v_thick.hh,
	* scribo/filter/objects_v_thin.hh: Fix variable names and make
	these routines work properly.

	* scribo/toolchain/content_in_doc.hh,
	* scribo/preprocessing/rotate_90.hh: Fix preconditions.

	* scribo/primitive/extract/non_text.hh: Remove useless precondition.

	* scribo/primitive/link/internal/link_single_dmax_ratio_aligned_base.hh:
	Remove a useless method.

	* scribo/primitive/link/internal/link_single_dmax_ratio_base.hh:
	Remove a useless (void).

	* scribo/text/extract_lines.hh: Use dmax_default functor.

	* src/debug/show_groups_bboxes.cc: Check hratio while linking.

	* src/preprocessing/denoise_fg.cc: Fix usage.


	* scribo/tests/toolchain/nepomuk/Makefile.am: Check if Magick++ is available.