* doc/examples/accu-wrong-instanciation.cc.raw: Fix an incomplete
	namespace specification.

	* doc/figures/fill-subimage-cfun-1.ppm,
	* doc/outputs/fill-subimage-cfun.txt,
	* doc/examples/fill-subimage-cfun.cc,
	* doc/examples/split/fill-subimage-cfun-1.cc.raw,
	* doc/examples/split/fill-subimage-cfun-2.cc.raw,
	* doc/examples/split/fill-subimage-cfun-3.cc.raw: Rename as...

	* doc/figures/fill-imageif-cfun-1.ppm,
	* doc/outputs/fill-imageif-cfun.txt,
	* doc/examples/fill-imageif-cfun.cc,
	* doc/examples/split/fill-imageif-cfun-1.cc.raw,
	* doc/examples/split/fill-imageif-cfun-2.cc.raw,
	* doc/examples/split/fill-imageif-cfun-3.cc.raw: ... this.

	* doc/examples/tuto3/first_routine.cc,
	* doc/examples/tuto4_genericity_and_algorithms.cc,
	* doc/examples/split/tuto3_first_routine-1.cc.raw,
	* doc/examples/split/tuto3_first_routine-5.cc.raw,
	* doc/examples/split/tuto3_first_routine-7.cc.raw,
	* doc/examples/split/tuto4_genericity_and_algorithms-2.cc.raw:
	Update sample code

	* doc/e...