* BUG: Fix compilation on 32 bits systems.

[GB.FORM]
* NEW: DateChooser got a boolean Border property.
* NEW: ColorChooser got a boolean Border property.

[GB.GTK]
* BUG: Style drawing methods should be correctly clipped now.
* BUG: Compilation with older versions of librsvg should work now.
* BUG: Setting the Paint.Font property with a control font has no side 
  effects anymore.
* BUG: Drawing richt text and getting rich text size now wrap the text the
  same way.


git-svn-id: svn://localhost/gambas/trunk@5474 867c0c6c-44f3-4631-809d-bfa615b0a4ec