Added metadata import user action
NO-JIRA Moved access control code to constructor
PROV-499 Importer worksheet drag-and-drop target now stays open until closed
PROV-496 Data import framework now handles repeating XML values; also added some additional logging
PROV-496
PROV-497, PROV-498 Added support for short-form attribute mappings, added logging code, generally cleaned things up
PROV-496 Oops