Use version 4 of PHPUnit.
Comment test for simple transfer timetable parser.
Update composer packages.
Rename class: from Trip to Train.
Rename function names.
Add class Trip.
Know if Trip has transfers.
Get Trip's departure time.
Timetable object now uses Trips.
Improve line name in Train.
Simplify DateTime comparisons.
Add transfer train to Trip.
Refactor test.
Add multiple transfer trains to Trip.
Transfer trains must leave after departure train arrives.
Parse timetable with simple transfers.
Rename functions.
Testing last trip from timetable with transfer.
Get transfer station name from parser.