* src/bin/spot-x.cc, src/bin/man/spot-x.x: New files.
* src/bin/Makefile.am, src/bin/man/Makefile.am: Adjust.
* src/bin/man/ltl2tgba.x: Remove all fine-tuning options,
and make a reference spot spot-x (7).
* src/bin/common_setup.hh, src/bin/common_setup.cc: Add
a misc_argp_hidden version of the option, so that --help
and --version are not shown in the --help output used
by help2man to generate spot-x.7.
* src/bin/ltl2tgba.cc: Refer to spot-x.7.
* src/tgbaalgos/postproc.cc, src/tgbaalgos/postproc.hh: New class to
capture the postprocessing logic.
* src/tgbaalgos/Makefile.am: Add them.
* src/bin/ltl2tgba.cc, src/bin/man/ltl2tgba.x: New files.
* src/bin/Makefile.am, src/bin/man/Makefile.am: Add them.
* src/tgbatest/spotlbtt.test: Prune the list of configurations slightly.
* src/tgbatest/spotlbtt2.test: New file.
* src/tgbatest/Makefile.am: Add it.
* bench/ltl2tgba/algorithms, bench/ltl2tgba/defs.in: Adjust to
use the new binary.
* NEWS: Update.