This code depends on the graph structure thus it had to be part of the
	VCSN_GRAPH_IMPL namespace.
	Some declarations also needed to have the VCSN_GRAPH_IMPL namespace
	specified.

	* include/vaucanson/algebra/implementation/series/krat.hxx: .
	* include/vaucanson/automata/implementation/generalized.hh: .
	* include/vaucanson/automata/implementation/legacy_graph_impl.hh: .
	* include/vaucanson/automata/implementation/legacy_graph_impl.hxx: .
	* include/vaucanson/contexts/fmp_transducer_maker.thh: .
	* include/vaucanson/contexts/fmp_transducer_maker.thxx: .
	* include/vaucanson/contexts/generic_automaton_impl.thh: .
	* include/vaucanson/contexts/transducer_maker.thh: .
	* include/vaucanson/contexts/transducer_maker.thxx: .