Travel-Status-DE-IRIS-0.09.tar.gz (signature)

• Result: Add arrival_wings, departure_wings and is_wing accessors (a wing train is coupled to the respective departure, but has its own ID)
• db-iris: Indicate wings in output
• Result: Remove train_no_transfer accessor (was based on erroneous assumptions)
• Result: Add is_unscheduled, replaced_by and replacement_for accessors
• db-iris: Add -oR to show replacement information