Bug 245437 [Preferences] (HEAD) Preference pages not scrollable (accessible) via keyboard
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferenceDialog.java
page.createControl(parent);
	}
	
	/**
	 * @see org.eclipse.jface.dialogs.IPageChangeProvider#getSelectedPage()
	 * 
	 * @since 3.1
	 */
	public Object getSelectedPage() {
			return getCurrentPage();
		}
	
	/**
	 * @see org.eclipse.jface.dialogs.IPageChangeProvider#addPageChangedListener(org.eclipse.jface.dialogs.IPageChangedListener)
	 * @since 3.1
	 */
	public void addPageChangedListener(IPageChangedListener listener) {
		pageChangedListeners.add(listener);
	}
	
	/**
	 * @see org.eclipse.jface.dialogs.IPageChangeProvider#removePageChangedListener(org.eclipse.jface.dialogs.IPageChangedListener)
	 * @since 3.1
	 */
	public void removePageChangedListener(IPageChangedListener listener) {
		pageChangedListeners.remove(listener);
		
	}
	/**
     * Notifies any selection changed listeners that the selected page