* src/import-cxx-cons/Makefile.am,
	* src/import-cxx-cons/import-cxx-cons.str: New files.

	* src/deterministic/Dxx.sdf:
	Deleted file.

	* src/deterministic/Dxx-main.sdf,
	* src/deterministic/Dxx-nocons.sdf: New files.

	* src/deterministic/Makefile.am:
	Now generate Dxx.sdf with import-cxx-cons tool and Dxx-nocons.sdf.
	The constructors in Dxx are now the same as Cxx.

	* src/cxxsdf/Makefile.am:
	New file. This directory is reseved for Cxx grammar files after
	using sdf-option and sdf-cons.

	* src/dxx-to-cxx/Makefile.am,
	* src/dxx-to-cxx/dxx-to-cxx.str,
	* src/cxx-to-dxx/Makefile.am,
	* src/cxx-to-dxx/cxx-to-dxx.str: Deleted files.

	* configure.ac,
	* src/Makefile.am: Some directories added or deleted

	* src/signature/Makefile.am,
	* src/pp/Makefile.am,
	* src/sdf/Makefile.am,
	* src/strategocxx/Makefile.am:
	Use Dxx.