* src/tgbaalgos/ltl2taa.cc: Do NOT use the same bdd_dict for both
the translation and the language containment checker.
* src/tgbatest/spotlbtt.test: Update TAA related tests.
* src/tgba/taa.cc, src/tgba/taa.hh: taa_succ_iterator is not
on-the-fly anymore allowing some redundant transitions to be
removed. Also a new function to output a TAA.
* src/tgbaalgos/ltl2taa.cc, src/tgbaalgos/ltl2taa.hh: Add the
refined rules from Tauriainen.
* src/tgbatest/ltl2tgba.cc: Use -c to activate refined rules in
ltl_to_taa.
* src/tgbatest/spotlbtt.test: More tests.
* misc/Makefile.am, misc/bbop.cc, misc/bddop.hh: Factorize some
code on BDDs to compute all_acceptance_conditions from
neg_acceptance_condition.
* src/tgba/Makefile.am, src/tgbatest/Makefile.am: Adjust.
* src/tgba/taa.cc, src/tgba/taa.hh: The TAA class.
* src/tgba/tgbaexplicit.hh: Use the factorized code in bddop.hh.
* src/tgbatest/taa.cc, src/tgbatest/taa.test: Some test cases.