[GB.DRAW]
* NEW: Add PaintExtents W and H properties as synonymous of Width and Height.
[GB.GUI.BASE]
* NEW: PictureBox now uses the new UserControl Draw pseudo-event.
* NEW: Frame container in now implemented in Gambas.
[GB.GTK]
* NEW: Frame container in now implemented in Gambas.
* BUG: Style drawing routines now work correctly on UserControl.
[GB.GTK3]
* NEW: Frame container in now implemented in Gambas.
[GB.QT4]
* NEW: Frame container in now implemented in Gambas.
[GB.QT5]
* NEW: Frame container in now implemented in Gambas.
* BUG: Do not activate windows on Wayland, this is not supported.
