Changes in SuperWaba 2.1

!1. removed methods addNotify and removeNotify. They are not being used at all
and they slowdown the add of controls
2. corrected colors at arcPiePointDrawAndFill. Thanks to Christopher.
3. new method Button.onlyShowImage. Perfect if you want to add a image as
background to your app. The button will have no borders and won't respond to
events.
4. new method Rect.set(Rect another)
5. fixed PopList popping up a PalmOS Combo placed in the LEFT,BOTTOM. Thanks to
Karlheinz Toni
6. now fillRect test agains clip boundaries. Thanks to Mark Leeds.
7. fixed GraphicsDestroy when an Image Graphics was the last used and it was
freed by the GC. Thanks to Jerason Banes.
8. fixed shift operators again. shame on me. Sorry, Peter, my fault.
9. fixed scrollbar update when selecting items. thanks to Jeb.
10. Added HandEra highres mode support (240x240).
11. added support for Catalog.skipBytes to go backwards.
12. ListBox.add(items []): forgot to update the scrollbar maximum. Thanks to Marc
Pacchiani.
13. added ListBox and ComboBox.removeAll to clear the ListBox.
14. added Sony highres mode support (320x320). Needed to change all 8bpp
routines.
15. now getClientRect is a method inside Container class.
16. Container now can have borders. Use BORDER_NONE
(default),BORDER_SIMPLE,BORDER_RAISED and BORDER_LOWERED. If you created a
Control that extends Container and want to use the Container's borders, you must
make sure that your implementation of onColorsChanged (if any) is calling
super.onColorsChanged.
17. Control.getParentWindow now use the old algorithm, if necessary.
18. Note: ListBox.select must be called only after the control has been added to
the container and its rect has been set.
19. Added setCursorColor method to ListBox, ComboBox and PushButtonGroup.
20. Now Convert.toString(double,int) rounds again instead of truncate.