test plan:
bundle exec rake db:migrate should work
test plan for quiz regrades should still work
Change-Id: I67228b914018fe21358ff08daa1db12988fc43fd
Reviewed-on: https://gerrit.instructure.com/23758
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Brian Palmer <brianp@instructure.com>
QA-Review: Myller de Araujo <myller@instructure.com>
Product-Review: Stanley Stuart <stanley@instructure.com>