* NEW: Do not apply the new DrawingArea.Painted property.

[GB.DRAW]
* NEW: The new Paint interface is now completed. Only its text part is
  rudimentary at the moment.

[GB.QT4]
* NEW: The Paint interface has been implemented on the following classes:
  Picture, Image, DrawingArea.
* NEW: DrawingArea.Painted is a new property. When set, the Paint interface 
  must be used inside the Draw event, instead of the old Draw interface.


git-svn-id: svn://localhost/gambas/trunk@2530 867c0c6c-44f3-4631-809d-bfa615b0a4ec