Remove any code that was unsuccessful in making Aero snap
features work. This may be looked at again in the future, but
for now, the code that did not work is unnecessary.
Make the titlebar buttons work (Minimize, Maximize, and Exit).
Fix mouse tracking on scrollbars.
New_Border_Widget to Border:
Lose the 'New' from the class name since it will be
finalized and replace the old Border_Widget class. Will
also drop the 'Widget' from the end of the class name for
simplicity, resulting in a class named 'Border'.