* Resolve ambiguity between typef'ed ARDOUR::timepos_t and
Temporal::timepos_t (and timecnt_t, superclock_t)
* Add missing classes TempoPoint, MeterPoint, which are
return value for various TempoMap methods.
* Change TempoMap into a shared_ptr<> class.
* Move Tempo and Meter out of ARDOUR into Temporal namespace.
* add various bindings to access the TempoMap
* move Temporal enums out of ARDOUR::Temporal namespace
3b18b025e3