Bug 67513 [R21PRES] view tab tool tip inconsistent with 2.1
In 2.1, the tab item tool tip appeared in the stack's title bar, not on the tab item itself. The r21presentation currently puts the tip on the tab item. I'll attach a patch that fixes the problem.
bundles/org.eclipse.ui.presentations.r21/src/org/eclipse/ui/internal/presentations/R21BasicStackPresentation.java
}
		Control currentToolbar = getCurrentToolbar();
		paneFolder.setTopCenter(currentToolbar);
		IPartMenu partMenu = getPartMenu();
		if (partMenu != null) {
			pullDownButton.setEnabled(true);
		} else {
			pullDownButton.setEnabled(false);
		}
		paneFolder.setTopRight(viewToolBar);
		viewToolBar.setVisible(true);
		paneFolder.layout(true);
		if (current != null) {
			Rectangle clientArea = paneFolder.getClientArea();
			Rectangle bounds = paneFolder.getControl().getBounds();
			clientArea.x += bounds.x;
			clientArea.y += bounds.y;
			current.setBounds(clientArea);
		}
	}
	/**
	 * Returns the IPartMenu for the currently selected part, or null if the
	 * current part does not have a menu.
	 * 
	 * @return the IPartMenu for the currently selected part or null if none
	 */
	protected IPartMenu getPartMenu() {
		IPresentablePart part = getCurrentPart();
		if (part == null) {
			return null;