Bug 29163 SafeRunnable needs to be accessible in JFace
We need to be able to access the SafeRunnable in JFace in order that some error protection can be added to preferences and properties dialogs.
bundles/org.eclipse.ui.workbench/extensions/org/eclipse/jface/wizard/Wizard.java
/**
	 * Indicates whether this wizard supports help.
	 */
	private boolean isHelpAvailable = false;
	
	/**
	 * The default page image for pages without one of their one;
	 * <code>null</code> if none.
	 */
	private Image defaultImage = null;
	
	/**
	 * The default page image descriptor, used for creating a default page
	 * image if required; <code>null</code> if none.
	 */
	private ImageDescriptor defaultImageDescriptor = null;
	
	/**
	 * The color of the wizard title bar; <code>null</code> if none.
	 */
	private RGB titleBarColor = null;
	/**
	 * The window title string for this wizard; <code>null</code> if none.
	 */
	private String windowTitle = null;
	
	/**
	 * The dialog settings for this wizard; <code>null</code> if none.
	 */
	private IDialogSettings dialogSettings = null;