* debug/decision_image.hh: Fix precondition.

	* filter/object_links_bbox_h_ratio.hh,
	* filter/objects_thick.hh,
	* primitive/internal/have_link_valid.hh,
	* primitive/internal/is_link_valid.hh: Fix doc.

	* filter/object_links_bbox_ratio.hh: Fix doc and invert ratio.

	* filter/object_links_bottom_aligned.hh: Fix doc and use a float
	angle value.

	* filter/object_links_non_aligned.hh: Use absolute values.

	* filter/object_links_non_aligned_simple.hh: Add special cases.

	* filter/object_links_non_h_aligned.hh: Fix call to an underlying
	routine.

	* filter/objects_small.hh,
	* filter/objects_thin.hh,
	* filter/objects_v_thin.hh,
	* primitive/extract/lines_discontinued.hh,
	* primitive/extract/lines_h_single.hh,
	* primitive/extract/lines_h_thick_and_single.hh,
	* primitive/extract/lines_thick.hh,
	* primitive/extract/lines_v_discontinued.hh,
	* primitive/extract/lines_v_single.hh,
	* primitive/extract/lines_v_thick_and_single.hh,
	* primitive/internal/is_invalid_link.hh,
	* src/multi_scale/find_lines.cc,
	* src/primitive/group/group_from_rag.cc,
	* src/table/rebuild_opening.cc,
	* src/table/rebuild_rank.cc,
	* text/clean.hh: Avoid warnings.

	* primitive/internal/find_left_link.hh,
	* primitive/internal/find_right_link.hh,
	* primitive/internal/update_link_array.hh: Make the routine return
	a value.

	* src/binarization/sauvola.cc,
	* src/binarization/sauvola_pgm.cc: Fix call to Sauvola's algorithm.

	* src/primitive/group/group_from_graph.cc,
	* src/primitive/group/group_from_several_graph.cc: Change
	arguments values while calling with_several_graphes.

git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@4704 4aad255d-cdde-0310-9447-f3009e2ae8c0