TimeTable: remove old v0 code
Jormungandr: fix utc pb with schedule on calendar

for calendar times are handled in local inside kraken because the
calendar might span over multiple dst.

so for schedule with calendar we don't need to conver to utc the query
from_datetime (used to get the beginning hour)
Ed: store utc shift in seconds

It is more logical since we handle all other time in seconds
TimeTable: fix sort for calendar
Merge pull request #726 from antoine-de/calendar_fix

TimeTable: fix stop schedule for calendar