* mln/geom/max_col.hh: New.
	* mln/geom/nrows.hh: New.
	* mln/geom/min_row.hh: New.
	* mln/geom/max_row.hh: New.
	* mln/geom/ncols.hh: New.
	* mln/geom/size2d.hh: New.
	* mln/geom/min_col.hh: New.

	* mln/core/image2d_b.hh (image2d_b): Remove inheritance to
	box_impl.
	
	* tests/image2d_b.cc,
	* mln/core/pixter2d_b.hh,
	* mln/io/save_pgm.hh,
	* mln/io/load_pgm.hh,
	* mln/level/was.median.hh,
	* mln/level/median.hh,
	* mln/level/fast_median.hh,
	* mln/canvas/sbrowsing.hh: Update.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@1058 4aad255d-cdde-0310-9447-f3009e2ae8c0