Bug 296565 Make group creation an advanced option in the folder
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFolderMainPage.java
* selection contains exactly one container resource then it will be used as
	 * the default container resource.
	 * 
	 * @param pageName
	 *            the name of the page
	 * @param selection
	 *            the current resource selection
	 */
	public WizardNewFolderMainPage(String pageName,
			IStructuredSelection selection) {
		super("newFolderPage1");
		setTitle(pageName);
		setDescription(IDEWorkbenchMessages.WizardNewFolderMainPage_description);
		this.currentSelection = selection;
	}
	/**
	 * Creates the widget for advanced options.
	 * 
	 * @param parent
	 *            the parent composite
	 */
	protected void createAdvancedControls(Composite parent) {
		Preferences preferences = ResourcesPlugin.getPlugin()
				.getPluginPreferences();
		if (preferences.getBoolean(ResourcesPlugin.PREF_DISABLE_LINKING) == false) {
			linkedResourceParent = new Composite(parent, SWT.NONE);
			linkedResourceParent.setFont(parent.getFont());
			linkedResourceParent.setLayoutData(new GridData(
					GridData.FILL_HORIZONTAL));
			GridLayout layout = new GridLayout();