* spot/misc/bitvect.cc, spot/misc/bitvect.hh, spot/tl/formula.cc,
spot/tl/formula.hh: Here.
* NEWS: Mention the bug.

This only occurs when doing the emptiness check of twa with allocated
states.

* spot/twaalgos/couvreurnew.cc: Here.
* NEWS: Mention the bug.

* spot/misc/bddlt.hh: do it

* spot/misc/game.cc: here.

* spot/misc/game.cc: here.

This is not optimal yet because it still construct a minimal WDBA
internally, but it's better than the previous way to call
minimize_obligation() since it can avoid constructing the minimized
automaton in a few more cases.

* spot/tl/hierarchy.cc, spot/tl/hierarchy.hh: Introduce
is_obligation().
* bin/ltlfilt.cc: Wire it to --obligation.
* spot/twaalgos/minimize.cc: Implement is_wdba_realizable(),
needed by the above.
* tests/core/obligation.test: Test it.
* bin/man/spot-x.x, NEWS: Document it.

* spot/tl/hierarchy.cc: code was actually reachable.

* spot/twaalgos/minimize.cc (minimize_obligation): When
needed (i.e. in the non-deterministic case), make the reverse check
before the forward check, because it does not require translating the
negated formula.

* spot/twaalgos/minimize.cc (wdba_minimization): Here.

* spot/twaalgos/minimize.cc (wdba_minimization): Improve handling of
deterministic input by not doing the powerset/wdba_scc_is_accepting
duo, and skipping the one inclusion test.

* spot/twaalgos/couvreurnew.cc: explicit operator bool is not used by
return.

* bin/dstar2tgba.cc: Do not call to_generalized_buchi(), it's
already done in postproc.

* bin/common_setup.cc: Here.
* NEWS, bin/man/spot-x.x: Document it.

Fixes #296.

* doc/org/ltlcross.org: Here.

* configure.ac, NEWS: Here.

* NEWS, configure.ac, doc/org/setup.org: Update.

That's the new name of ltl3hoa.

* bin/common_trans.cc: Add it.

Fixes #297. Implement the following rules.

Fin(i) & Fin(j) by f if i and j are complementary
Fin(i) & Inf(i) by f
Inf(i) | Inf(j) by t if i and j are complementary
Fin(i) | Inf(i) by t.

* spot/twaalgos/cleanacc.cc, spot/twaalgos/cleanacc.hh: Here.
* tests/python/merge.py: Add more test cases.
* NEWS: Mention the change.

This improves the coverage for bdd_dict::assert_emptiness() and
bdd_dict::dump().

* tests/core/bdddict.cc, tests/core/bdddict.test: New files.
* tests/Makefile.am, tests/core/.gitignore: Adjust.

* spot/twa/bdddict.cc, spot/twa/bdddict.hh: Here.
* NEWS: Mention this removal.

* spot/twa/acc.cc: Implement this.
* tests/python/randaut.ipynb: Adjust.

Fixes #288.

* bin/autfilt.cc: Implement it.
* spot/twa/acc.cc, spot/twa/acc.hh: Add
acc_cond::is_generalized_streett, acc_cond::operator==, and
acc_cond::operator!=.
* tests/core/randaut.test: Add some tests.
* NEWS: Mention it.

* spot/twa/acc.cc: Implement this.
* tests/python/automata.ipynb, tests/python/randaut.ipynb,
tests/python/stutter-inv.ipynb: Adjust.

Fixes #289.

* spot/twaalgos/stats.cc, spot/twaalgos/stats.hh,
bin/common_aoutput.cc, bin/common_aoutput.hh: plug %g and %G into
acc_cond::name() when arguments are given as %[arg]g.  or %[arg]G.
* tests/core/acc2.test: Add test case.
* doc/org/randaut.org, NEWS: Document it.

* spot/twa/acc.cc, spot/twa/acc.hh (acc_cond::name): New method.
* spot/twaalgos/dot.cc: Use it.
* tests/python/acc_cond.ipynb: Add a small test.
* NEWS: Mention it.

* spot/twaalgos/stutter.cc,
spot/twaalgos/stutter.hh (stutter_invariant_letters)
(stutter_invariant_states): Get rid of the broken local variant.
* tests/python/stutter-inv.ipynb, NEWS: Document.
* python/spot/impl.i: Bind vector<bdd>.

* tests/core/satmin3.test: New file.
* tests/Makefile.am: Add it.
* spot/misc/satsolver.cc: Cleanup error messages.
* spot/misc/satsolver.hh (satsolver_get_solution): Remove this unused
function.
* tests/core/readsat.cc, tests/core/readsat.test: Delete (unused).
* tests/Makefile.am: Adjust.

* tests/core/bdd.test: New file.
* tests/Makefile.am: Add it.

We do not need these functions in Spot.

* spot/misc/random.cc, spot/misc/random.hh (bmrand, prand): Remove.
* NEWS: Mention it.

* tests/core/parseaut.test: Add more tests.

* spot/twaalgos/iscolored.hh, spot/twaalgos/parity.hh: Here.

* spot/twaalgos/stutter.cc, spot/twaalgos/stutter.hh: Cleanup and
document the api.
* spot/twa/twa.hh, doc/mainpage.dox: Add a stutter-invariant section.
* tests/python/stutter-inv-states.ipynb: Rename as ...
* tests/python/stutter-inv.ipynb: ... this, and add more comments.
* tests/Makefile.am, doc/org/tut.org: Adjust renaming.
* bench/stutter/stutter_invariance_randomgraph.cc,
bench/stutter/stutter_invariance_formulas.cc,
bench/stutter/Makefile.am: Make it compile again.
* bin/autfilt.cc: Call inplace variants.
* NEWS: Mention the overhaul.

* doc/org/install.org: Mention the GPG key.

* doc/org/install.org: Mention the GPG key.

* doc/org/tut04.org: This tests equivalence, not equality.

That's the new name of ltl3hoa.

* bin/common_trans.cc: Add it.

* spot/twa/acc.hh: Here.

* doc/org/tut04.org: This tests equivalence, not equality.