* src/Makefile.am,
	* src/extract/primitive/Makefile.am,
	* src/text/Makefile.am: Add new targets.

	* src/extract/primitive/find_thick_and_single_lines.cc,
	* src/text/cleantxt.cc,
	* src/text_in_photo_ppm.cc: New full examples.

	* src/extract/primitive/find_thick_lines.cc: Use the lines_*_thick
	routines.

	* src/text_in_doc.cc,
	* src/text_in_photo.cc: Improve outputs.

git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@4484 4aad255d-cdde-0310-9447-f3009e2ae8c0