LPS-33090 Adding MDR related skeleton staged model data handlers
LPS-33090 Moving export import logic to the appropriate staged model data handler (cut/paste)
LPS-33090 Cleaning up path methods in MDRPortletDataHandler
LPS-33090 Moving validateTargetLayoutPlid into MDRActionStagedModelDataHandler (no logic change)
LPS-33090 Removing date range and path processed checks (framework is there to do it)
LPS-33090 Applying new logic to the staged model data handlers according to the new architecture
LPS-33090 Applying changes to MDR portlet data handler according to the new architecture
LPS-33090 Registering new data handlers in liferay-portlet xml
LPS-33090 Source formatting
LPS-33090 Fixing dependency handling
LPS-33090 Deleting rule groups automatically removes its instances
LPS-33090 SF
LPS-33090 Since this is displayed to the user, we show it based on hierarchy, which is rules first, and then actions since actions are based on rules. In other *PortletDataHandler, we often use the term "folders-and-entries" as another key.