* mln/core/image/extension_ima.hh (todo): Remove; obsolete.
	(ctor): Add const for extension.
	(change_extension): Remove.
	(extension): Remove the mutable version.
	(init_): Remove the mutable version.
	(init_): Make it robust to constness.
	* mln/core/routine/extend.hh: Upgrade file doc style.
	(extend): Remove overload for mutable extension.

	Misc.
	
	* mln/core/site_set/p_priority.hh: Upgrade file doc style.
	(insert): New overload for a priority queue.
	* mln/make/double_neighb2d.hh: Upgrade file doc style.
	* mln/make/box2d.hh (todo): New.
	* mln/labeling/compute.hh: Fix commentary.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@3164 4aad255d-cdde-0310-9447-f3009e2ae8c0