* bin/common_aoutput.cc, bin/common_aoutput.hh, bin/common_output.cc,
bin/common_output.hh: Add options to %x to list atomic propositions
with various quoting scheme. Deprecate --format=%a in favor of the
new --format=%x for consistency with --stats=%x.
* tests/core/format.test, tests/core/remprop.test: Adjust and add more
tests.
* NEWS: Mention these changes.
* bin/common_output.cc: Move some of the printing code...
* spot/tl/hierarchy.cc, spot/tl/hierarchy.hh: ... here, as new
variants of mp_class...
* python/spot/impl.i: ... that we can now call from Python.
* python/ajax/spotcgi.in: Use those to simplify and extend
the code printing class membership.
Tools for deciding the class of a formula.
* spot/tl/hierarchy.cc, spot/tl/hierarchy.hh: New files.
* spot/tl/Makefile.am: Add them.
* bin/common_output.cc, bin/common_output.hh: Implement --format=%h.
* tests/core/hierarchy.test: More tests.
* NEWS: Update.
This patch is mostly focused on tagging most virtual methods that
override as such. I found a few methods that where not meant to be
virtual this way, and tagged a few classes "final" along the way.
* bin/common_output.cc, spot/kripke/fairkripke.hh,
spot/kripke/kripke.hh, spot/kripke/kripkegraph.hh,
spot/ltsmin/ltsmin.cc, spot/misc/formater.hh, spot/priv/bddalloc.hh,
spot/ta/ta.hh, spot/ta/taexplicit.hh, spot/ta/taproduct.hh,
spot/ta/tgta.hh, spot/ta/tgtaexplicit.cc, spot/ta/tgtaexplicit.hh,
spot/ta/tgtaproduct.hh, spot/taalgos/emptinessta.hh, spot/tl/declenv.hh,
spot/tl/defaultenv.hh, spot/tl/randomltl.hh, spot/tl/relabel.cc,
spot/twa/bdddict.cc, spot/twa/taatgba.hh, spot/twa/twagraph.hh,
spot/twa/twaproduct.hh, spot/twaalgos/gtec/ce.cc,
spot/twaalgos/gtec/ce.hh, spot/twaalgos/gtec/gtec.hh,
spot/twaalgos/gv04.cc, spot/twaalgos/ltl2taa.cc, spot/twaalgos/magic.cc,
spot/twaalgos/minimize.cc, spot/twaalgos/ndfs_result.hxx,
spot/twaalgos/reachiter.hh, spot/twaalgos/se05.cc,
spot/twaalgos/stutter.cc, spot/twaalgos/tau03.cc: Add more override and
final keywords.
