Fix typo in image extensions
Revert "Show attachments in admin"

This reverts commit 4dedfd44c05b0c39bb9260e49b3bd872393c138c.
ignore trailing slash for attachments
Replace karma with reputation
import IntegrityError
Try printing some more info with the integrityerror
Use Attachment in importer
Update summary at end of import
Remove erroneous warning
Generate summary directly when importing