Ed: Shift stop_times so the 1st one of every vj is in [0,86400[
Ed: Unactivate timezone forcing
Ed: check every stop time is in [0, 86400[
Ed: add some UT on shift_stop_times
Ed: fix comments...
Ed: Ensure we compare the first st of a vj
Ed: Use copy operator
Jormunandr: re-activate timezone on stop_area
Ed: put metadata in data
Ed: handle first day in shift_stop_times
Ed: add asserts on shift_stop_times
Ed: fix shifting
Ed: types assert days >= 0
Ed: shifting was made in the wrong way
Ed: add tests on shift_stop_times
Ed: add const on shift_stop_times
Ed: remove a comment
Ed: use boost::find_if in get_or_create
Ed: use min_element in shift_stop_times
Ed: Correct a comment