Imports for new database handle.

pygtktalog/models/main.py

@@ -7,6 +7,11 @@
 """
 from gtkmvc import Model
 
+from pygtktalog.dbobjects import File, Exif, Group, Gthumb
+from pygtktalog.dbobjects import Image, Tag, Thumbnail
+from pygtktalog.dbcommon import connect, Meta
+
+
 class MainModel(Model):
     status_bar_message = _("Idle")