Clear hidden libxml errors.
Remove unused protected method.
Creating TImetable class.
Timetable with departure and destination stations.
Prepare list of trips in TImetable.
Refactor tests.
Adding trips to Timetable.
Refactor tests.
Trips obtained from Timetable are ordered.
Comparing trip with other that leaves later.
Comparing trip with other that leaved before.
Same departure time, but the given trip's arrival is after.
Same departure time, but the given trip's arrival is before.
Comparing trips with equal departure and arrival time.
Refactor trip sorting process in Timetable.
Refactor tests.
Preparing Timetable parser.