Bug 32038 Use shared images for properties, tasks, bookmarks views
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/bookmarkexplorer/BookmarkNavigator.java
private SortByAction sortByCreationTime;
	private ChangeSortDirectionAction sortAscendingAction;
	private ChangeSortDirectionAction sortDescendingAction;	 
	private IMemento memento;
	private BookmarkSorter sorter;
	private Clipboard clipboard;
	
	private final String columnHeaders[] = {
		BookmarkMessages.getString("ColumnIcon.header"),
		BookmarkMessages.getString("ColumnDescription.header"),
		BookmarkMessages.getString("ColumnResource.header"),
		BookmarkMessages.getString("ColumnFolder.header"),
		BookmarkMessages.getString("ColumnLocation.header")};
												
	private ColumnLayoutData columnLayouts[] = {
		new ColumnPixelData(19, false),
		new ColumnWeightData(200),
		new ColumnWeightData(75),
		new ColumnWeightData(150),
		new ColumnWeightData(60)};												
	
	
	private static final String TAG_SELECTION = "selection"; 
	private static final String TAG_ID = "id";
	private static final String TAG_MARKER = "marker";
	private static final String TAG_RESOURCE = "resource";
	private static final String TAG_VERTICAL_POSITION = "verticalPosition";
	private static final String TAG_HORIZONTAL_POSITION = "horizontalPosition";
	
	class SortByAction extends Action {