LPS-35596 Support for displaying missing references from portlets themeselves (instead of other staged models)
LPS-35596 move methods to ExportImportHelper (no logic changes)
LPS-35596 replace hardcoded references by portlet data handlers method to process portlet preferences
LPS-35596 copy/paste methods from PortletImporter/PortletExporter to their own datahandlers (no changes)
LPS-35596 use portletPreferences instead of xml
LPS-35596 rename methods
LPS-35596 don't need the layout if we already have the plid
LPS-35596 Override methods that will actually process the preferences
LPS-35596 cleanup - remove parameters that are not neccessary
LPS-35596 validation for bookmarks root folder
LPS-35596 validation for DL root folder
LPS-35596 validation for wiki visible nodes
LPS-35596 Add @Override
LPS-35596 Remove unused code
LPS-35596 Rename methods (no logic changes)
LPS-35596 The public method, to be consistent with this class, should throw a PortletDataException. Use teh do* pattern so that the implementation methods can throw an Exception for convenience.
LPS-35596 Automatic SF (sorting), no logic changes
LPS-35596 Fix wrong name
LPS-35596 Don't use WIkiNodeUtil in a data handler, use the local service
LPS-35596 Don't use WIkiNodeUtil in a data handler, use the local service