TNL-813

fixed the multi-line issue for criterion prompt, criterion option text,

TNL-814

TNL-814

TNL-814

Fix field AssessmentPart.criterion to point to Criterion table.

TNL-72 & TNL-62 & TNL-811

More accurate validation for date & time in studio editor.

TNL-58

TNL-58

peer assessment feedback and self assessment feedback.

TNL-814

TNL-58

TNL-58

Catch and log DatabaseErrors in assessment.api.self.create_assessment.

TNL-812

TNL-812

Migration 0020 incorrectly altered the field to point to the
CriterionOption table.

TNL-826

Fixed criterion name with label which is displayed to the user.

TNL-768

Added vagrant setup.

Verify submission_uuid when creating assessments

This corrects an issue where assessments were sometimes incorrectly
associated with the wrong response.

The behavior was caused because the POST request to the `peer_assess`
handler only contained the feedback text/options and did _not_ include
mention of which original response was being assessed. If the current
workflow item is updated on the server _after_ the page first loads but
_before_ the page is submitted, this submission will be incorrectly
associated with the following response.

Steps to reproduce:
- Submit a response (User A).
- Wait for peers to submit responses (User B and User C).
- Load page with first peer response to be assessed (not not submit).
- Open the same page again in a new tab.
- In 1st tab, assess and submit assessment for User B.
- In 2nd tab, assess and submit assessment for User B.
- Notice that your assessment for User B's response is also applied to
  User C's response.

This changeset does _not_ restore data retroactively.

Fix TNL-680

Update lxml and scipy

Don't pin the version too strictly.

Update Transifex translations

Don't use published_date to figure out if xblock is published

ask the modulestore if it's published
LMS-11184

Fix typo