* tests/metal_pow.cc,
	* tests/all.cc,
	* mln/trait/value_.hh,
	* mln/metal/math/pow.hh,
	* mln/metal/math/max.hh,
	* mln/metal/math/all.hh,
	* mln/metal/math/sqrt.hh,
	* mln/metal/all.hh,
	* mln/value/graylevel.hh,
	* mln/value/graylevel_f.hh,
	* mln/value/float01_.hh,
	* mln/value/int_s.hh,
	* mln/value/internal/gray_.hh,
	* mln/value/internal/gray_f.hh,
	* mln/value/int_u.hh,
	* mln/value/int_u_sat.hh,
	* mln/value/label.hh: metal/math had been wrongly substitute by algebra/math.

	* mln/trait/ch_value.hh,
	* mln/core/h_vec.hh: wrong namespace for vec.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@1787 4aad255d-cdde-0310-9447-f3009e2ae8c0