* mln/core/image/image1d.hh: Layout doc.
	(element): Precise doc.  Fix precondition.
	(element): Rename ind as i (less ambiguous).
	* mln/core/image/image3d.hh: Fix doc.
	(element): Rename o as i to be consistent.
	* mln/border/fill.hh (fill_size_n): Factor const cast.
	* mln/win/segment1d.hh: Upgrade doc style.
	* mln/win/line.hh: Likewise.
	* mln/morpho/erosion.spe.hh: Likewise.
	(erosion_chooses_arbitrary): Remove; such a test has to be a
	static chek (at compile-time!)
	(erosion_dispatch_wrt_arbitrary_win): New.
	(erosion_dispatch_wrt_win): Turn dispatch into static.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/branches/cleanup-2008@2837 4aad255d-cdde-0310-9447-f3009e2ae8c0