* src/tgbatest/ltl2tgba.cc (-M): New option for building
deterministic monitors.
* src/tgbaalgos/minimize.cc (minimize): Take a monitor
argument and adjust the code.
* src/tgbaalgos/minimize.hh (minimize): Document it.
New files. Algorithm to minimize an automaton using first the powerset
construction to determinize the input automaton, the automaton is then
minimized using the standard algorithm, using BDDs to check if states
are equivalent.