<geometricData> and any unknown attributes in <drawingData>.

* include/vaucanson/xml/builders.hxx (get_semiring_operations):
Add specialization to output CyclicSemirings as "field".
* data/vaucanson.xsd: Update it.

Since we never "open" a weight, we just use a symbol to say where is
the weight: it's a "weight opening symbol".
Same for weightClosing.

  * data/vaucanson.xsd: Here.
  * include/vaucanson/xml/xmleq.hxx: Here.

	* data/vaucanson.xsd: New complexType `seriesWritingData'. Rework
	  the `writingData' element in `valueType'.
	* include/vaucanson/xml/builders.hh: New
	  `SeriesRepresentationHandler'. New `create_series_representation'
	  and `create_series_representationh'. Add an argument to
	  `create_monoid' and `check_monoid_consistency'.
	* include/vaucanson/xml/builders.hxx: Add the implementation of
	  `SeriesRepresentationHandler', mostly of based on
	  `FreeMonoidHandler'. (create_monoid): Update implementation to
	  reflect the new prototype. Add the implementation of
	  `create_series_representation' and
	  `create_series_representationh'. (check_monoid_consistency):
	  Update implementation to reflect the new prototype with some
	  overhauls. (create_type_writingData_node): Rename `weightOpening'
	  to `openWeight' and `weightClosing' to `closeWeight'.
	* include/vaucanson/xml/contexts/fmp.hh: New macro `FMPsreptype' to
	  make code tighter. Add a specialization for
	  `SeriesRepresentationHandler' for FMP. Add one argument to
	  `create_monoid' and `check_monoid_consistency'. New
	  `create_type_writingData_node' specialization to better support
	  series representations for FMP.
	* include/vaucanson/xml/contexts/fmp.hxx: Add the implementation of
	  the new specialization mostly based on the `FreeMonoidProduct'
	  one. Add the implementation of `create_type_writingData_node'.
	* include/vaucanson/xml/handlers.hh (TypeHandler): Cosmetic changes.
	  New `reph_' and `rep_' attributes.
	* include/vaucanson/xml/handlers.hxx: Use the new
	  `create_series_representation' to mimic the handling of monoid.
	* include/vaucanson/xml/xmleq.hh: Cosmetic changes. Does the
	  following renaming: `plus' -> `plusSym', `times' -> `timesSym',
	  `spaces' -> `spacesSym'. New `starSym', `type' and `free'
	  attributes.
	* include/vaucanson/xml/xmleq.hxx: Update the implementation
	  according to the previous changes.

  - plusSym
  - timesSym
  - ...

  * data/vaucanson.xsd: Here.
  * include/vaucanson/algebra/implementation/monoid/free_monoid.hh:
  Since we need to create the monoid before parsing its content, we need
  to update the representation after its creation. So set_representation
  should be public (or friendly)
  * include/vaucanson/xml/builders.hh: Here.
  * include/vaucanson/xml/builders.hxx: Here.
  * include/vaucanson/xml/handlers.hh: Here.
  * include/vaucanson/xml/handlers.hxx: Here.
  * include/vaucanson/xml/printers.hxx: Here.
  * include/vaucanson/xml/xmleq.hh: Here.
  * include/vaucanson/xml/xmleq.hxx: Here.

	W.r.t the specifications, we should use "source" and not "src"
	in the transitions. (Ticket #189)
	
	* data/automata/char-rw-b/add1-rw.xml: .
	* data/automata/char-rw-b/quot-3-rw.xml: .
	* data/vaucanson.xsd: .
	* doc/manual/xml.tex: .
	* include/vaucanson/xml/printers.hxx: .
	* include/vaucanson/xml/xmleq.hxx: .
	* src/tests/xml/Makefile.am: Remove useless session test.
	* src/tests/xml/b_ref.xml: .
	* src/tests/xml/fmp_ref.xml: .
	* src/tests/xml/geometry_ref.xml: .
	* src/tests/xml/int_b_ref.xml: .
	* src/tests/xml/int_fmp_ref.xml: .
	* src/tests/xml/int_trans_ref.xml: .
	* src/tests/xml/int_z_fmp_ref.xml: .
	* src/tests/xml/int_z_max_plus_ref.xml: .
	* src/tests/xml/int_z_min_plus_ref.xml: .
	* src/tests/xml/int_z_ref.xml: .
	* src/tests/xml/int_z_trans_ref.xml: .
	* src/tests/xml/label_node_ref.xml: .
	* src/tests/xml/r_ref.xml: .
	* src/tests/xml/session_ref.dot: Remove. Not used anymore.
	* src/tests/xml/session_ref.xml: Remove. Not used anymore.
	* src/tests/xml/trans_ref.xml: .
	* src/tests/xml/xml_session_tester.cc: Remove. Not used anymore.
	* src/tests/xml/z_fmp_ref.xml: .
	* src/tests/xml/z_max_plus_ref.xml: .
	* src/tests/xml/z_min_plus_ref.xml: .
	* src/tests/xml/z_ref.xml: .
	* src/tests/xml/z_trans_ref.xml: .
	* taf-kit/tests/automata/char-b/ambiguous1.xml: .
	* taf-kit/tests/automata/char-b/ambiguous2.xml: .
	* taf-kit/tests/automata/char-b/b_to_transpose.xml: .
	* taf-kit/tests/automata/char-b/b_transposed.xml: .
	* taf-kit/tests/automata/char-b/finalword.xml: .
	* taf-kit/tests/automata/char-b/initialword.xml: .
	* taf-kit/tests/automata/char-b/initseries.xml: .
	* taf-kit/tests/automata/char-b/non_ambiguous1.xml: .
	* taf-kit/tests/automata/char-b/realtime_test.xml: .
	* taf-kit/tests/automata/char-fmp-b/inverted_t1.xml: .
	* taf-kit/tests/automata/char-fmp-b/t1_compose_u1.xml: .
	* taf-kit/tests/automata/char-fmp-b/t2.xml: .
	* taf-kit/tests/automata/char-fmp-b/t2_u-compose_u2.xml: .
	* taf-kit/tests/automata/char-fmp-b/u2.xml: .
	* taf-kit/tests/automata/char-z/standard_c1.xml: .
	* taf-kit/tests/automata/int-b/int-b.xml: .
	* taf-kit/tests/automata/int-z/int-z.xml: .

  * Delete useless drawingData exemple.
  * add finalMod to geometricData.

	* data/vaucanson.xsd: Here.

	Remove range attribute.
	Set it mandatory to have a monoid and semiring.
	* data/vaucanson.xsd: Here.

	* data/vaucanson.xsd: Remove the <transducer> tag.
	Change the `generators' attribute to `generatorType'.
	* doc/xml/xml_proposal.tex: Update accordingly.
	* include/vaucanson/xml/xml_chooser.hh,
	* include/vaucanson/xml/xml_chooser.hxx,
	* include/vaucanson/xml/xml_converter.hxx,
	* include/vaucanson/xml/tools.hxx,
	* include/vaucanson/xml/xerces_parser.hxx: Update accordingly. Remove
	the `choose_start_tag' method from xml_chooser.
	* src/tests/xml/label_node_ref.xml,
	* src/tests/xml/trans_ref.xml,
	* src/tests/xml/geometry_ref.xml,
	* src/tests/xml/r_ref.xml,
	* src/tests/xml/z_ref.xml,
	* src/tests/xml/z_min_plus_ref.xml,
	* src/tests/xml/b_ref.xml,
	* src/tests/xml/z_max_plus_ref.xml,
	* src/tests/xml/fmp_ref.xml,
	* src/tests/xml/session_ref.xml,
	* taf-kit/tests/b_to_transpose.xml,
	* taf-kit/tests/t2_u-compose_u2.xml,
	* taf-kit/tests/b_transposed.xml,
	* taf-kit/tests/inverted_t1.xml,
	* taf-kit/tests/t2.xml,
	* taf-kit/tests/u2.xml,
	* taf-kit/tests/non_ambiguous2.xml,
	* taf-kit/tests/ambiguous.xml,
	* taf-kit/tests/non_ambiguous.xml,
	* taf-kit/tests/t1_compose_u1.xml,
	* data/automata/tdc-rw/quot-3-rw.xml,
	* data/automata/tdc-rw/add1-rw.xml,
	* data/automata/b/a1.xml,
	* data/automata/b/b1.xml,
	* data/automata/b/div3base2.xml,
	* data/automata/b/double-3-1.xml,
	* data/automata/b/ladybird-6.xml,
	* data/automata/z/b1.xml,
	* data/automata/z/c1.xml,
	* data/automata/tdc/t1.xml,
	* data/automata/tdc/u1.xml: Update accordingly.

	* data/vaucanson.xsd: Change the structure of the semiring description.
	Semirings with set=`ratSeries' are now `numericalSemiring's and
	recursive. The <semiring> tag is not recursive anymore.
	* doc/xml/xml_proposal.tex: Update accordingly. Fix some errors. Remove
	the first references to the tag <transducer>. Enhance some descriptions.
	* include/vaucanson/xml/tools.hxx: Update accordingly.
	* src/tests/xml/label_node_ref.xml,
	* src/tests/xml/trans_ref.xml,
	* src/tests/xml/geometry_ref.xml,
	* src/tests/xml/r_ref.xml,
	* src/tests/xml/z_ref.xml,
	* src/tests/xml/b_ref.xml,
	* src/tests/xml/fmp_ref.xml,
	* src/tests/xml/session_ref.xml,
	* taf-kit/tests/b_to_transpose.xml,
	* taf-kit/tests/t2_u-compose_u2.xml,
	* taf-kit/tests/b_transposed.xml,
	* taf-kit/tests/inverted_t1.xml,
	* taf-kit/tests/t2.xml,
	* taf-kit/tests/u2.xml,
	* taf-kit/tests/non_ambiguous2.xml,
	* taf-kit/tests/ambiguous.xml,
	* taf-kit/tests/non_ambiguous.xml,
	* taf-kit/tests/t1_compose_u1.xml,
	* data/automata/tdc-rw/quot-3-rw.xml,
	* data/automata/tdc-rw/add1-rw.xml,
	* data/automata/b/a1.xml,
	* data/automata/b/b1.xml,
	* data/automata/b/div3base2.xml,
	* data/automata/b/double-3-1.xml,
	* data/automata/b/ladybird-6.xml,
	* data/automata/z/b1.xml,
	* data/automata/z/c1.xml,
	* data/automata/tdc/t1.xml,
	* data/automata/tdc/u1.xml: Update accordingly.

	* data/vaucanson.xsd: Update the geometryTrans node definition. Add
	GeometryInitFinal node for initial and final states, with specific
	attributes.
	* doc/xml/xml_proposal.tex: Update accordingly. Fix some issues.

	* data/vaucanson.xsd: Split the `expressionAttributes' into two
	attribute groups: `atomAttributes' and `nodeAttributes'.
	Add left and right weights for nodes of an expression.
	Refine the drawing tag.
	* doc/xml/xml_proposal.tex: Update accordingly.
	* include/vaucanson/algebra/implementation/series/rat/xml_exp_visitor.hh,
	* include/vaucanson/algebra/implementation/series/rat/xml_exp_visitor.hxx:
	Add the support of left and right weights for output. Fix a bug	about
	weights.
	* include/vaucanson/algebra/implementation/series/rat/exp.hh,
	* include/vaucanson/algebra/implementation/series/rat/exp.hxx: Minor fix.
	* include/vaucanson/xml/tools.hxx: Add the support of left and right
	weights for input.
	* src/tests/xml/xml_label_node_tester.cc: Enhance the tests on weights.
	* src/tests/xml/label_node_ref.xml,
	* src/tests/xml/label_node_ref.dot: Update accordingly.

	* data/vaucanson.xsd: Use a better way to propose the same label
	description possibilities. Rename and change some attributes, delete
	most of the drawing attributes.
	* include/vaucanson/xml/tools.hxx,
	* src/tests/xml/xml_geometry_tester.cc,
	* src/tests/xml/geometry_ref.xml,
	* src/tests/xml/z_min_plus_ref.xml,
	* src/tests/xml/z_max_plus_ref.xml,
	* doc/xml/xml_proposal.tex: Update accordingly.

	* data/vaucanson.xsd: Remove annoying default range.

	The nodes like `<label_type>' are renamed to `<labelType>', so as to
	fit with all other XML files format.

	* data/vaucanson.xsd: Remove underscores in all the compound names,
	capitalize the first letter of the following words. Change weight type
	from decimal to string. Change the minimal number of children of the
	nodes `sum' and `product' from 0 to 2.
	* include/vaucanson/algebra/implementation/series/rat/xml_exp_visitor.hxx,
	* include/vaucanson/xml/xml_chooser.hh,
	* include/vaucanson/xml/node.hh,
	* include/vaucanson/xml/xml_chooser.hxx,
	* include/vaucanson/xml/node.hxx,
	* src/tests/xml/label_node_ref.xml,
	* src/tests/xml/trans_ref.xml,
	* src/tests/xml/geometry_ref.xml,
	* src/tests/xml/r_ref.xml,
	* src/tests/xml/z_ref.xml,
	* src/tests/xml/z_min_plus_ref.xml,
	* src/tests/xml/b_ref.xml,
	* src/tests/xml/z_max_plus_ref.xml,
	* src/tests/xml/fmp_ref.xml,
	* src/tests/xml/session_ref.xml,
	* src/demos/automaton_library/a1.xml,
	* src/demos/automaton_library/b1.xml,
	* src/demos/automaton_library/c1.xml,
	* src/demos/transducers/t1.xml,
	* src/demos/transducers/u1.xml,
	* taf-kit/tests/non_ambiguous.xml,
	* taf-kit/tests/non_ambiguous2.xml,
	* taf-kit/tests/ambiguous.xml,
	* doc/xml/xml_proposal.tex,
	* doc/manual/examples/a1.xml,
	* doc/manual/examples/b1.xml,
	* doc/manual/examples/add1_rt.xml,
	* doc/manual/examples/quot_3_rt.xml: Update accordingly.

 
	* data/vaucanson.xsd: Change the structure of the label as a node. The
	element corresponding to the star is now a node instead of an attribute.
	* include/vaucanson/xml/tools.hxx: Change the parsing of an XML node
	accordingly.
	* include/vaucanson/algebra/implementation/series/rat/xml_exp_visitor.hxx:
	Change the `star' case of the xml visitor. A star node is now created.

	* include/vaucanson/xml/node.hxx: Do not fill the alphabet with the
	default range anymore if an empty alphabet is clearly defined.
	Add the support for the alphabet ranges of the xsd file.
	* data/vaucanson.xsd: Change the default range from `ascii' to
	`implicit_alphabet', add a restriction for the range attribute.
	* doc/xml/xml_proposal.tex: Change the default range accordingly.

- src/vaucanson.xsd: Move to...
- data/vaucanson.xsd: ... Here.

- src/tests/xml/Makefile.am,
- src/demos/algorithms/Makefile.am,
- src/demos/function_library/Makefile.am,
- src/demos/transducers/Makefile.am,
- src/Makefile.am,
- taf-kit/tests/defs.in,
- doc/xml/xml_proposal.tex,
- data/Makefile.am: Update accordingly.

	* src/vaucanson.xsd: Add `label' nodes to allow one to write labels like
	`(a,b)+(b,a)' on FMP.
	Add forgotten `in' and `out' label nodes in `initial_transducer' and
	`final_transducer' nodes.

	Add an xml format for a label node, part I.

	* src/vaucanson.xml: Add content for a label node.
	* include/vaucanson/xml/tools.hxx: Change the parsing of the XML input
	so as to correctly read a label written as a node.

- include/vaucanson/xml/xml_chooser.hh,
- include/vaucanson/xml/xml_chooser.hxx,
- include/vaucanson/xml/node.hxx,
- src/demos/automaton_library/a1.xml,
- src/demos/automaton_library/b1.xml,
- src/demos/automaton_library/c1.xml,
- src/demos/transducers/t1.xml,
- src/demos/transducers/u1.xml,
- src/vaucanson.xsd,
- doc/xml/xml_proposal.tex,
- doc/manual/examples/a1.xml,
- doc/manual/examples/b1.xml,
- doc/manual/examples/add1_rt.xml,
- doc/manual/examples/quot_3_rt.xml: s/type/label_type.

Some bugs fixed in algorithms/ and xml/.
Reindendation made on modified files.

- include/vaucanson/automata/implementation/graph.hh: Rename partially
since a graph should consider `edge's and not `transition's.

- include/vaucanson/xml/xml_chooser.hh,
- include/vaucanson/xml/node.hh,
- include/vaucanson/xml/xml_converter.hh,
- include/vaucanson/xml/xml_chooser.hxx,
- include/vaucanson/xml/node.hxx,
- include/vaucanson/xml/xml_converter.hxx,
- include/vaucanson/tools/gen_book.hxx,
- include/vaucanson/tools/dot_format.hxx,
- include/vaucanson/tools/simple_format.hxx,
- include/vaucanson/tools/gen_random.hh,
- include/vaucanson/tools/gen_random.hxx,
- include/vaucanson/tools/fsm_dump.hxx,
- include/vaucanson/tools/usual_macros.hh,
- include/vaucanson/tools/io.hh,
- include/vaucanson/tools/io.hxx,
- include/vaucanson/algorithms/minimization_hopcroft.hxx,
- include/vaucanson/algorithms/extension.hxx,
- include/vaucanson/algorithms/standard_of.hxx,
- include/vaucanson/algorithms/forward_realtime.hxx,
- include/vaucanson/algorithms/sum.hh,
- include/vaucanson/algorithms/cut_up.hxx,
- include/vaucanson/algorithms/backward_realtime.hxx,
- include/vaucanson/algorithms/realtime.hxx,
- include/vaucanson/algorithms/letter_to_letter_composition.hxx,
- include/vaucanson/algorithms/internal/build_pattern.hxx,
- include/vaucanson/algorithms/internal/skeleton.hh,
- include/vaucanson/algorithms/internal/skeleton.hxx,
- include/vaucanson/algorithms/fmp_to_realtime.hxx,
- include/vaucanson/algorithms/realtime_to_fmp.hxx,
- include/vaucanson/algorithms/closure.hxx,
- include/vaucanson/algorithms/product.hxx,
- include/vaucanson/algorithms/realtime_composition.hxx,
- include/vaucanson/algorithms/is_letterized.hxx,
- include/vaucanson/algorithms/aut_to_exp.hxx,
- include/vaucanson/algorithms/evaluation.hxx,
- include/vaucanson/algorithms/thompson.hxx,
- include/vaucanson/algorithms/minimization_moore.hxx,
- include/vaucanson/algorithms/sub_normalize.hxx,
- include/vaucanson/algorithms/determinize.hxx,
- include/vaucanson/algorithms/concatenate.hxx,
- include/vaucanson/algorithms/isomorph.hxx,
- include/vaucanson/algorithms/standard.hxx,
- include/vaucanson/algorithms/projections_fmp.hxx,
- include/vaucanson/algorithms/normalized.hxx,
- include/vaucanson/algorithms/complete.hxx,
- include/vaucanson/algorithms/projection.hxx,
- include/vaucanson/algorithms/eval.hxx,
- include/vaucanson/algorithms/normalized_composition.hxx,
- include/vaucanson/algorithms/is_realtime.hxx,
- include/vaucanson/algorithms/fmp_to_realtime.hh,
- include/vaucanson/algorithms/realtime_to_fmp.hh,
- include/vaucanson/algorithms/is_normalized.hxx,
- include/vaucanson/algorithms/sum.hxx,
- include/vaucanson/algorithms/outsplitting.hxx,
- include/vaucanson/automata/implementation/automaton_view.hh,
- include/vaucanson/automata/implementation/geometry.hxx,
- include/vaucanson/automata/implementation/kind_adapter.hh,
- include/vaucanson/automata/implementation/transpose_view.hh,
- include/vaucanson/automata/implementation/automaton_view.hxx,
- include/vaucanson/automata/implementation/geometry.hh,
- include/vaucanson/automata/implementation/transpose_view.hxx,
- include/vaucanson/automata/concept/transducer.hxx,
- include/vaucanson/automata/concept/copy.hxx,
- include/vaucanson/automata/concept/transducer_ops.hh,
- include/vaucanson/automata/concept/automata_ops.hh,
- include/vaucanson/automata/concept/translate.hh,
- include/vaucanson/automata/concept/delta_kind.hh,
- include/vaucanson/automata/concept/handlers.hh,
- include/vaucanson/automata/concept/history.hh,
- include/vaucanson/automata/concept/transducer_ops.hxx,
- include/vaucanson/automata/concept/transducer_base.hh,
- include/vaucanson/automata/concept/automata_ops.hxx,
- include/vaucanson/automata/concept/translate.hxx,
- include/vaucanson/automata/concept/automata_base.hh,
- include/vaucanson/automata/concept/kinds.hh,
- include/vaucanson/automata/concept/history.hxx,
- include/vaucanson/automata/concept/transducer_base.hxx,
- include/vaucanson/automata/concept/automata_base.hxx,
- include/vaucanson/automata/concept/kinds.hxx,
- src/benchs/minimization_stroppa/init.hxx,
- src/benchs/minimization_stroppa/minimization_bench_moore.cc,
- src/benchs/minimization_stroppa/minimization_bench_hopcroft.cc,
- src/benchs/composition/realtime_composition_bench.hh,
- src/benchs/composition/normalized_composition_bench.hh,
- src/benchs/common/algorithm.hh,
- src/benchs/common/bench_constructs.hh,
- src/benchs/quotient/quotient_bool_bench.hh,
- src/benchs/quotient/quotient_z_bench.hh,
- src/benchs/derived_terms/derived_terms_bench.hh,
- src/tests/context_headers/fmp_transducers/global_consistency_test.hh,
- src/tests/context_headers/automata/global_consistency_test.hh,
- src/tests/context_headers/transducers/global_consistency_test.hh,
- src/tests/xml/xml_trans_tester.cc,
- src/tests/xml/r_ref.dot,
- src/tests/xml/xml_geometry_tester.cc,
- src/tests/xml/z_ref.dot,
- src/tests/xml/z_min_plus_ref.dot,
- src/tests/xml/xml_automaton_tester.cc,
- src/tests/xml/b_ref.dot,
- src/tests/xml/z_max_plus_ref.dot,
- src/tests/xml/fmp_ref.dot,
- src/tests/xml/session_ref.dot,
- src/tests/xml/trans_ref.dot,
- src/tests/xml/xml_fmp_tester.cc,
- src/tests/xml/geometry_ref.dot,
- src/tests/xml/xml_session_tester.cc,
- src/tests/automata/implementation_check/rdelta_test.hh,
- src/tests/automata/implementation_check/Makefile.am,
- src/tests/automata/implementation_check/global_consistency_test.hh,
- src/tests/automata/algos/fmp_transducers/normalized_composition_test.hh,
- src/tests/automata/algos/fmp_transducers/evaluation_fmp_test.hh,
- src/tests/automata/algos/fmp_transducers/sub_normalize_test.hh,
- src/tests/automata/algos/label_aware_graphs/glushkov_test.hh,
- src/tests/automata/algos/label_aware_graphs/standard_of_regression_test.hh,
- src/tests/automata/algos/label_aware_graphs/sum_test.hh,
- src/tests/automata/algos/label_aware_graphs/closure_test.hh,
- src/tests/automata/algos/label_aware_graphs/cut_up_test.hh,
- src/tests/automata/algos/graphs/extract_test.hh,
- src/tests/automata/algos/boolean_automata/minimization_test.hh,
- src/tests/automata/algos/boolean_automata/complete_test.hh,
- src/tests/automata/algos/labeled_graphs/thompson_test.hh,
- src/tests/automata/algos/letter_combination_labeled_graphs/compute_test.hh,
- src/tests/automata/algos/letter_combination_labeled_graphs/product_regression_test.hh,
- src/tests/automata/algos/letter_combination_labeled_graphs/product_test.hh,
- src/demos/vaucanswig/doc/README.txt,
- src/demos/vaucanswig/meta/automaton.hh,
- src/demos/vaucanswig/meta/vaucanswig_automaton.i,
- src/demos/vaucanswig/meta/vauto.hh,
- src/demos/algorithms/contains_factor.cc,
- src/demos/algorithms/classics.cc,
- src/demos/algorithms/universal.cc,
- src/demos/function_library/tdc_algorithms.cc,
- src/demos/function_library/rt_tdc_algorithms.cc,
- src/demos/function_library/algorithms.cc,
- src/demos/automaton_library/a1.cc,
- src/demos/automaton_library/b1.cc,
- src/demos/automaton_library/c1.cc,
- src/demos/automaton_library/double_ring.cc,
- src/demos/automaton_library/divkbaseb.cc,
- src/demos/automaton_library/ladybird.cc,
- src/demos/utilities/vgrep/vgrep.cc,
- src/demos/utilities/fsm/usual_automaton_t/vcsn_random_generator.cc,
- src/demos/utilities/fsm/generate_toolbox.sh,
- src/demos/transducers/one_rule_rewriting/fibonacci_rt_gen.cc,
- src/demos/transducers/one_rule_rewriting/ORR_rt_gen.cc,
- src/demos/transducers/one_rule_rewriting/fibonacci_tdc_gen.cc,
- src/demos/transducers/one_rule_rewriting/fibonacci_demo.cc,
- src/demos/transducers/one_rule_rewriting/ORR_tdc_gen.cc,
- src/demos/transducers/one_rule_rewriting/ORR_demo.cc,
- src/demos/transducers/t1.cc,
- src/demos/transducers/u1.cc,
- src/vaucanson.xsd,
- doc/xml/xml_proposal.tex,
- doc/README-IO.txt,
- doc/NEWS.txt: s/edge/transition/. Nearly everywhere.

	* src/vaucanson.xsd: Several minor changes. Change `integers' to
	`digits' in the `generators' attribute.
	* doc/xml/xml_proposal.tex: Change version number. The version of the
	new proposal and its xsd file is 0.3.

	* include/vaucanson/xml/tools.hxx: Add 2006 Copyright.
	* src/tests/xml/xml_geometry_tester.cc: New. Test for the geometry tag.
	* src/tests/xml/tester.sh: Add Geometry test in the script.
	* src/tests/xml/geometry_ref.xml,
	* src/tests/xml/geometry_ref.dot: Add references for the geometry test.
	* src/tests/xml/Makefile.am: Update accordingly.
	* src/vaucanson.xsd: Change 'geometry_xy' to `geometry_state', and
	`geometry_full' to `geometry_global'. Remove attribute edgeStyle from
	the `geometry_global' complexType.

	First change in Vaucanson because of the new version of the XML
	documentation. From now on, the first element of the automaton
	and transducer types is "label_type" and not "type" anymore.

	* src/vaucanson.xsd: Change "label" to "label_type" in the automaton
	and transducer types.
	* include/vaucanson/xml/xml_chooser.hxx,
	* include/vaucanson/xml/node.hxx,
	* include/vaucanson/xml/node.hh: Propagate the change of the xsd file.
	* src/tests/xml/trans_ref.xml,
	* src/tests/xml/r_ref.xml,
	* src/tests/xml/z_ref.xml,
	* src/tests/xml/z_min_plus_ref.xml,
	* src/tests/xml/b_ref.xml,
	* src/tests/xml/z_max_plus_ref.xml,
	* src/tests/xml/fmp_ref.xml,
	* src/tests/xml/session_ref.xml: Change the reference files.

XML's XSD file is now searched :
1) As the file pointed by the environment variable VCSN_XSD_PATH,
2) In the current directory, as `vaucanson.xsd',
3) In the default installation path for this file (most likely
   `/usr/share/vaucanson/vaucanson.xsd').

- include/vaucanson/xml/xerces_parser.hh: Rename to...
- include/vaucanson/xml/xerces_parser-hh.in: ... this, and inherit
  `VCSN_XSD_PATH' from the configure.
- include/vaucanson/xml/xerces_parser.hxx: Check for the XSD file
  different locations.
- doc/xml/vaucanson.xsd: Move to...
- src/vaucanson.xsd: ... Here.
- doc/xml/Makefile.am: Update accordingly.
- src/Makefile.am: Distribute the XSD in a `data' directory (most
  likely `/usr/share').

- src/tests/xml/Makefile.am,
- src/demos/function_library/Makefile.am,
- src/demos/algorithms/Makefile.am,
- src/demos/transducers/Makefile.am: Update the path to the XSD in
  the symlink creation. Don't use GNU extensions of ln(1).

- configure.ac: Compute the default XSD path and substitute a variable
  in `xerces_parser-hh.in'.

	* doc/xml/vaucanson.xsd: Fixes to add drawing properties and identity
	symbol for monoid.
	* doc/xml/xml_proposal.tex: Add a document about the XML proposal. 
	* doc/xml/Makefile.am: Update accordingly.

	* doc/xml/vaucanson.xsd: Change the grammar in order to make <initial>
	and <final> children of <transitions>. Suppress tags <initials> and
	<finals>.
	
	* include/vaucanson/xml/node.hh,
	* include/vaucanson/xml/node.hxx,
	* include/vaucanson/xml/xml_converter.hxx: Update according to the 
	grammar changes.

	* src/tests/xml/trans_ref.xml,
	* src/tests/xml/r_ref.xml,
	* src/tests/xml/z_ref.xml,
	* src/tests/xml/z_min_plus_ref.xml,
	* src/tests/xml/b_ref.xml,
	* src/tests/xml/z_max_plus_ref.xml,
	* src/tests/xml/fmp_ref.xml,
	* src/tests/xml/session_ref.xml: Update accordingly.

	This patch re-activate XML session support. Usage is the same as 
	before, but the class is named xml_session.
	
	* include/vaucanson/xml/session.hh,
	* include/vaucanson/xml/session.hxx: New. XML session support.

	* include/vaucanson/xml/xml_converter.hh,
	* include/vaucanson/xml/xml_converter.hxx,
	* include/vaucanson/xml/xerces_parser.hxx,
	* include/vaucanson/xml/tools.hh,
	* include/vaucanson/xml/tools.hxx: Code maintainance to ease XML 
	session handling.

	* src/demos/xml/make_session.cc,
	* src/demos/xml/display_session.cc: New. Re-add demos for session. 
	These demos are temporarely limited to boolean automata. 

	* src/tests/xml/trans_ref.xml,
	* src/tests/xml/r_ref.xml,
	* src/tests/xml/z_ref.xml,
	* src/tests/xml/z_min_plus_ref.xml,
	* src/tests/xml/b_ref.xml,
	* src/tests/xml/z_max_plus_ref.xml,
	* src/tests/xml/fmp_ref.xml: Fix. Add an extraneous blank line at end 
	of file.

	* src/tests/xml/session_ref.xml
	* src/tests/xml/session_ref.dot,
	* src/tests/xml/xml_session_tester.cc: Add tests for XML sessions.
	* src/tests/xml/tester.sh: Update accordingly.
	
	* include/Makefile.am,
	* src/tests/xml/Makefile.am,
	* src/demos/xml/Makefile.am: Update.

	* doc/xml/vaucanson.xsd: Fix maxOccurs parameter for sessions (was set 
	to 1, set to unbounded).

	* include/vaucanson/xml/xml_chooser.hh,
	* include/vaucanson/xml/node.hh,
	* include/vaucanson/xml/xml_converter.hh,
	* include/vaucanson/xml/tools.hh,
	* include/vaucanson/xml/xerces_parser.hh: Fix some include problems.
	
	* include/vaucanson/xml/XML.hh: Move macro definitions ...
	* include/vaucanson/tools/usual_macros.hh:... here.
	
	* include/vaucanson/xml/if_tag.hh,
	* include/vaucanson/xml/if_tag.hxx: Delete. These files are inaccurate
	at the moment. They will be fixed and re-added, if necessary.

	* include/vaucanson/xml/strings.hh: Remove a bad include.

	* doc/xml/vaucanson.xsd: Fix monoid and semiring order for 
	transducers. 
		
	* include/Makefile.am: Fix and update.

	
	* doc/xml/vaucanson.xsd: New. XSD Schema for Vaucanson-XML 
	specification.
	* doc/xml/Makefile.am: Update accordingly.

	* Makefile.am: Remove dead directory reference.