Don't use published_date to figure out if xblock is published
ask the modulestore if it's published
LMS-11184
Merge pull request #623 from edx/split/edit_info

Don't use published_date to figure out if xblock is published
Update Transifex translations
Merge pull request #625 from edx/andya/ora-translations

Update Transifex translations
Update lxml to 3.3.6
Update scipy to 0.14.0
Don't pin the version too strictly.
Merge pull request #626 from edx/dcs/restframework-version

Don't pin the version too strictly.
Merge pull request #627 from singingwolfboy/update-lxml

Update lxml and scipy
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
Merge pull request #628 from stvstnfrd/uuid/verify-upstream

Verify submission_uuid when creating assessments
Created a Vagrantfile.
Updated README with instructions for setting up a Vagrant instance.
Make install-dev installs sass and python dev packages.
Fixed instructions for running workbench inside a vagrant instance.
Merge pull request #632 from edx/usman/add-vagrant-setup

Added vagrant setup.
Fixed syntax error in README.
Fixed criterion name with label which is displayed to the user.
TNL-768
Merge pull request #631 from edx/waheed/tnl768-fix-criterion-name

Fixed criterion name with label which is displayed to the user.
Catch and log DatabaseErrors in assessment.api.self.create_assessment.

TNL-812