ADD: Feature to limit the number of passengers who can commute to any given building (on average) over a month.
ADD: Display whether any given passenger is a commuting or visiting passenger in the stop and convoy information windows
FIX: A number of anomalies with the recording of passenger trips (including: "pass. dest." display no longer includes mail)
TODO: Separate recording/levels for commuting and visiting
TODO: Properly calibrate the number of jobs/population.
FIX: Some texts were not translated