option_map::set): Handle default values.
(anonymous::to_int): Do not print anything.
* src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh,
src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03.hh,
src/tgbaalgos/tau03opt.cc, src/tgbaalgos/tau03opt.hh,
src/tgbaalgos/ce.cc, src/tgbaalgos/ce.hh: Take an option_map in
the constructor.
* src/tgbaalgos/gtec.cc, src/tgbaalgos/gtec.hh: Likewise. Handle
the "poprem", "group", and "shy" options via the option_map.
Supply a couvreur99() wrapper to the shy/non-shy variant.
* src/tgbatest/ltl2tgba.cc, src/tgbatest/randtgba.cc,
iface/gspn/ssp.cc: Adjust.