Frames larger than the screen are broken since adding lightweight component
support.  When using teikade, use F17 to make the browser window fit the
screen.

Using copyArea in TextArea is broken since adding lightweight component
support.  We have commented it out, but scrolling large textareas is
slow without it.

Transferring focus from a Menu (e.g. creating a new window) results
in the Menu inserted in the focus chain.  Selecting a MenuItem should
hide the entire menu.

Window panning should use copyArea.  

Make smart lineDraw that looks at cell contents to compose intersections.

Menus need to capture entire focus.
Each top level window should capture entire focus.

Toggling CheckboxMenuItem needs to redraw Menu,
or else, Menu needs to hide itself when an Item is selected.
The problem is to maintain MenuContainer *parent.

Missing ScrollPanel in tuipeer.
Missing MouseEvent

Need "Mouse Mode"?
