Change the names from meterage to operating distance
Merge branch 'opdist'
Change the operating distance type of the station location to a rational
Create bobura::model::timetable::scheduled_speed
Implement bobura::model::timetable::scheduled_speed()
Correct compilation errors
Forbid same operating distance among station locations
Correct lint warnings
Add test cases for bobura::model::timetable::scheduled_speed()
Merge branch 'scheduled_speed'
Merge branch 'master' into propbar