* tests/int_s8.cc: New.
	* tests/int_u8.cc: Augment.
	* mln/histo/sort.hh: New.
	* mln/histo/data.hh: New.
	* mln/histo/compute.hh: New.
	* mln/accu/histo.hh: Fix doc.
	* mln/accu/median.hh: Fix doc.
	* mln/value/int_s8.hh: New.
	* mln/value/int_u16.hh: New.
	* mln/value/int_u8.hh: New.
	* mln/value/int_s.hh: New.
	* mln/value/int_u.hh (zero, one): New.
	(encoding_): Move to...
	* mln/value/internal/encoding.hh: ...this new file.
	* tests/median.cc,
	* tests/fast_median.cc,
	* tests/main.cc,
	* tests/hmedian.cc,
	* tests/erosion.cc,
	* tests/naive_median.cc,
	* tests/vset.cc,
	* tests/histo.cc,
	* mln/io/save_pgm.hh,
	* mln/io/load_pgm.hh: Update.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@1037 4aad255d-cdde-0310-9447-f3009e2ae8c0