* src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh: Add an options
parameter.
* src/bin/randaut.cc, src/bin/autfilt.cc, src/bin/dstar2tgba.cc,
src/bin/ltl2tgba.cc, wrap/python/ajax/spot.in: Use it.
* src/tgbatest/det.test, src/tgbatest/dstar.test,
src/tgbatest/ltl2tgba.cc, src/tgbatest/monitor.test,
src/tgbatest/neverclaimread.test, src/tgbatest/tgbaread.test,
src/graphtest/tgbagraph.test: Adjust
because automata are now output horizontally.
* NEWS: Mention the change.
* src/tgbatest/monitor.test: New file.
* src/tgbatest/Makefile.am: Add it.
* src/tgbaalgos/minimize.cc (minimize_monitor): Mark
the output automaton as state-based.
* src/tgba/tgbagraph.hh: Assume automata with 0 acceptance sets are also
state-based.