* tests/core/p_array.cc: Clean up (no more stdout).
	* doc/tutorial/examples: New directory.
	* doc/tutorial/examples/p_array.cc: New.
	* mln/core/internal/image_base.hh (mesh, bbox): Remove.
	(point, npoints): Rename as...
	(site, nsites): ...these.
	* mln/core/concept/image.hh: Likewise.
	* mln/core/p_array_piter.hh (index): New method.
	(index_of_in): New overload.
	* mln/core/concept/proxy.hh
	(get_adr): Make it work when no match is found.
	(operator Subject): Change into a more reliable version.
	* mln/core/p_array.hh (index_of_in): New procedures.
	(insert, change): New methods.
	(print): Remove.
	* mln/core/image2d.hh (bbox): New.
	(npoints): Rename as...
	(nsites): ...this.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/branches/cleanup-2008@1981 4aad255d-cdde-0310-9447-f3009e2ae8c0