* include/vaucanson/algorithms/aut_to_exp.hh,
	  include/vaucanson/algorithms/internal/has_neighbour.hh,
	  include/vaucanson/algorithms/is_ambiguous.hh,
	  include/vaucanson/algorithms/krat_exp_expand.hh,
	  include/vaucanson/algorithms/normalized.hh,
	  include/vaucanson/algorithms/realtime.hh,
	  include/vaucanson/algorithms/realtime_decl.hh,
	  include/vaucanson/algorithms/thompson.hh:
	  Disable the VCSN_USE_LIB tag because of undefined reference
	  during the linking process. The instanciations in the libvcsn
	  are uncomplete. This is a temporary fix for the linkage bug.

	* lib/generate_libvcsn.rb: Remove ignore on is_ambigous.

	* taf-kit/src/Makefile.am:
	  Enable link of vcsn-(b|z) against the libvcsn-(b|z).

	* include/vaucanson/algorithms/image.hxx: Fix filename in header.