Suggested by Joachim Klein.

* src/bin/ltlcross.cc: Implement it.
* src/tgbatest/ltlcross3.test: Test it.
* doc/org/ltlcross.org, NEWS: Document it.

Reported by Joachim Klein.

* src/bin/randltl.cc: Here.
* NEWS: Mention the fix.

Suggested by Joachim Klein.

* src/bin/randltl.cc: Implement it.
* src/ltltest/rand.test: Test it.
* doc/org/randltl.org, NEWS: Document it.

The specifications are at http://adl.github.io/hoaf/

* src/tgbaalgos/hoaf.cc, src/tgbaalgos/hoaf.hh: New files.
* src/tgbaalgos/Makefile.am: Add them.
* src/bin/dstar2tgba.cc, src/bin/ltl2tgba.cc,
src/tgbatest/ltl2tgba.cc: Add option to output HOA.
* NEWS: Mention it.

Suggested by Joachim Klein.

* wrap/python/ajax/spot.in: Try parse_lbt() when parse() fails.
* NEWS: Mention it.

So that people using white-background terminal can still read them...
Reported by Joachim Klein.

* src/bin/ltlcross.cc: Adjust.
* NEWS: Mention it.

The bug was reported by Joachim Klein.

* src/tgbaalgos/ltl2tgba_fm.cc (translate_dict::register_a_variable):
Reduce P(a M b) to P(a & b), not to P(a).
* src/tgbatest/ltlcross.test: Test Joachim's formula.
* src/tgbatest/ltl2ta.test: Adjust some expected values.
* NEWS: Mention the bug.

This was prompted by an exchange of emails with Caroline Lemieux.

* src/bin/man/ltl2tgba.x: Add notes and references.
* NEWS, THANKS: Update.

This can only cause failure when running under valgrind (i.e., in the
test suite), but is not a problem in practice as the test is certain
to fail the entry->c check whenever entry->b is uninitialized.

* src/bddop.c (bdd_implies): Here.

* doc/org/init.el.in (org-publish-timestamp-directory): Use a build
directory, not $HOME.

Reported by František Blahoudek.

* src/neverparse/neverclaimparse.yy: Fix.
* src/tgbatest/neverclaimread.test: Test it.
* NEWS: Mention the fix.

star_normal_form() used to be called under bounded
repetitions like [*0..4], but some of these rewritings
are only correct for [*0..].  For instance
     (a*|1)[*]      can be rewritten to    1[*]
but  (a*|1)[*0..1]  cannot be rewritten to 1[*0..1]
it would be correct to rewrite the latter as (a[+]|1)[*0..1],
canceling the empty word in a*.

Also (a*;b*)[*]     can be rewritten to    (a|b)[*]
but  (a*;b*)[*0..1]  cannot be rewritten to (a|b)[*0..1]
and it cannot either be rewritten to (a[+]|b[+])[*0..1].

This patch introduces a new function to implement
rewritings under bounded repetition.

* src/ltlvisit/snf.hh, src/ltlvisit/snf.cc (star_normal_form_unbounded):
New function.
* src/ltlvisit/simplify.cc: Use it.
* src/ltltest/reduccmp.test: Add tests.
* doc/tl/tl.tex: Document the rewritings implemented.

* NEWS, configure.ac, doc/org/tools.org: Bump version.

* doc/org/satmin.org, src/bin/man/dstar2tgba.x, src/bin/man/ltl2tgba.x:
Cite the FORTE'14 paper.
* doc/org/tools.org, src/bin/man/ltl2tgba.x: Replace the VECOS'11
citation by IJCCBS'14.
* src/bin/man/ltl2tgba.x: Cite SPIN'13.

Fortunately was only enabled with the
ltl_simplifier_options::favor_event_univ option, which cannot yet be
turned on from the command-line tools.

* src/ltlvisit/simplify.cc, doc/tl/tl.tex: Remove the rule.
* src/ltltest/eventuniv.test: Adjust.
* NEWS: Mention the bug.

* src/tgbaalgos/ltl2tgba_fm.cc: Here.
* src/ltltest/reduccmp.test: Add a test case.
* NEWS: Mention it.

* src/ltlvisit/simplify.cc: Remove two incorrect rules, and
partially disable another one.
* doc/tl/tl.tex: Reflect the change.
* src/ltltest/reduccmp.test: Likewise.
* src/ltltest/equals.cc: Add safety checks to catch such errors in the
future.
* NEWS: Mention the bug.

* src/taalgos/tgba2ta.cc: Do not assume the input is an sba.
* src/tgbatest/ltl2ta2.test: New file.
* src/tgbatest/Makefile.am: Add it.
* NEWS: Mention the fix.

* wrap/python/tests/ltl2tgba.py, wrap/python/tests/ltlparse.py: Use
Boolean instead of integers.

Also generalize the degen-lcache option.

* src/tgbaalgos/postproc.cc, src/tgbaalgos/postproc.hh: Add the option.
* src/bin/spot-x.cc: Document it.
* src/tgbaalgos/degen.cc, src/tgbaalgos/degen.hh: Implement it.
* src/tgbatest/ltlcross2.test: Add a test configuration.
* src/tgbatest/degenlskip.test: New file.
* src/tgbatest/Makefile.am (TESTS): Add degenlskip.test.

* src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlast/automatop.cc, src/ltlast/automatop.hh, src/ltlast/binop.cc,
src/ltlast/binop.hh, src/ltlast/bunop.cc, src/ltlast/bunop.hh,
src/ltlast/constant.cc, src/ltlast/constant.hh, src/ltlast/multop.cc,
src/ltlast/multop.hh, src/ltlast/unop.cc, src/ltlast/unop.hh: Move all
one-line accessors methods like nth(), child(), op()... from *.cc files
to their respective *.hh files.

* NEWS, configure.ac, doc/org/tools.org: Update version.

Apparently their hash tables store the hash functions in a const
member, and this requires a user-supplied default constructor.
Reported by Étienne Renault.

* src/misc/hash.hh: Add an empty constructor to all hash functions.

* src/kripke/kripkeexplicit.cc: Add missing const, reported by Etienne
Renault using Apple's clang version that is installed with OS X 10.9.

* doc/Makefile.am, src/ltltest/defs.in, src/ltltest/latex.test: Here.

* src/misc/satsolver.cc: Add the "-model" option.
* NEWS, doc/org/satmin.org, src/bin/man/spot-x.x: Mention it.