added classes Change in model, ChangeController in controller and change in view.
Merge remote-tracking branch 'origin/master'
Changed change.fxml; added another column for the row and seat number. Added buttons 'Slet' og 'Ændr'.
Added button handlers for 'Slet' og 'Ændr' i klassen ChangeController. Print statements in the methods.
Changed change.fxml; added another column for the row and seat number. Added buttons 'Slet' og 'Ændr'.
Added button handlers for 'Slet' og 'Ændr' i klassen ChangeController. Print statements in the methods.