ets-berkeley-edu/datacultures — pull request #59 by coyote (2014-08-19 05:17:22+00:00)
Title: Make submissions editable -- resubmitting will now change what appears i...

Resubmitting will now change what appears in the gallery
* shows only the last submission
* Attachment model / attachments table added
* app/services/canvas/attachments_processor.rb added
* also don't do many actions if there is no change