restore the ImportInfo to the new Pro-Gen importer

gramps/plugins/importer/importprogen.py

@@ -58,6 +58,7 @@ from gramps.gen.lib import (Address, Attribute, AttributeType, ChildRef, Citatio
                             Place, PlaceName, Source, SrcAttribute, Surname, Tag)
 from gramps.gen.utils.id import create_id
 from gramps.gui.utils import ProgressMeter
+from gramps.gen.utils.libformatting import ImportInfo
 
 class ProgenError(Exception):
     """
@@ -88,6 +89,7 @@ def _importData(database, filename, user):
     except IOError as msg:
         user.notify_error(_("%s could not be opened") % filename, str(msg))
         return
+    return ImportInfo({_("Results"): _("done")})
 
 def _find_from_handle(progen_id, table):
     """