* include/vaucanson/algorithms/complement.hxx (complement_here): Use
new_set_final instead of set_final.
* include/vaucanson/algorithms/complete.hxx (do_complete_here): Use
new_set_initial instead of set_initial.
* include/vaucanson/algorithms/determinize.hxx
(do_subset_construction): Use new_set_intial (resp. set_initial) instead of
new_set_final (resp. set_final).
* include/vaucanson/automata/concept/automata_base.hh (set_initial)
(set_final): Remove.
(new_add_transition): New method.
(new_add_transition, new_add_to_transition, new_set_transition)
(new_set_initial, new_set_final): Remove default arguments, and add
overloaded functions, because we do not know the dynamic value of an
automaton at compile time.
(new_set_initial, new_set_final): Rename the overloaded versions for
entries to new_set_initial_entry and new_set_final_entry to prevent
ambiguous calls.
* include/vaucanson/automata/concept/automata_base.hxx (set_initial)
(set_final): Remove the implementation.
(unset_initial, unset_final): Use op_new_set_initial and
op_new_set_final.
(new_add_transition, new_add_to_transition, new_set_transition)
(new_set_initial, new_set_final): Compute the default arguments for
overloaded methods.
* include/vaucanson/automata/implementation/automata_impl.hh,
include/vaucanson/automata/implementation/automata_impl.hxx
(VertexToLabel::set): Remove.
* include/vaucanson/automata/implementation/automata_ops.hh
(op_set_initial, op_set_final): Remove.
Add overloaded operators for new methods from automata_base.hh.
* include/vaucanson/automata/implementation/automata_ops.hxx
(op_convert): Disable.
Add overloaded operators implementations for new methods from
automata_base.hh. Fix the calculation of the zero element.
* include/vaucanson/automata/implementation/iterators/transition_iterator.hxx
(TransitionIterator<>::op_weight),
include/vaucanson/automata/implementation/iterators/rdelta_transition_iterator.hxx
(RDeltaTransitionIterator<>::op_weight): Use the underlying graph
method weight_of to access the weight.