[GB.FORM]
* NEW: SliderBox: Use the new Slider.Orientation property.
[GB.GUI.BASE]
* NEW: ScrollArea: Use the new ScrollBar.Orientation property.
[GB.GTK]
* NEW: ScrollBar: Add orientation constants.
* NEW: ScrollBar: Orientation is a new property that allows to define the orientation explicitly.
* NEW: Slider: Orientation is a new property that allows to define the orientation explicitly.
[GB.GTK3]
* NEW: ScrollBar: Add orientation constants.
* NEW: ScrollBar: Orientation is a new property that allows to define the orientation explicitly.
* NEW: Slider: Orientation is a new property that allows to define the orientation explicitly.
[GB.QT4]
* NEW: ScrollBar: Add orientation constants.
* NEW: ScrollBar: Orientation is a new property that allows to define the orientation explicitly.
* NEW: Slider: Orientation is a new property that allows to define the orientation explicitly.
[GB.QT5]
* NEW: ScrollBar: Add orientation constants.
* NEW: ScrollBar: Orientation is a new property that allows to define the orientation explicitly.
* NEW: Slider: Orientation is a new property that allows to define the orientation explicitly.
d900937949