FIx typo.
Starting with curl tests.
Update ignored files.
Show url in exception
Check route id is integer.
Test exception message.
Get Route object from provider.
More tests to confirm Route is correct.
Refactor tests.
Add route ids to constants.
Station has a new parameter in constructor: routeId
Simplify addition of stations to routes.
Retrieve timetable with provider.
Refactoring Provider code.
Simplify interface.
Refactor Provider tests.
Refactor RouteParser tests.
Refactor TimetableParser tests.