Minor changes to migration files to make them compatible with python 3
2.3.5
* Adds a `WaffleMixin` class to the `OpenAssessmentBlock`. * Add setting to enable teams in ORA XBlock, gated by a course-specific waffle flag.
2.3.3
* In learner responses, displays the original file name (from the learner's system) along with uploaded file descriptions. * Fixes edge-cases that allow for the upload/submission of files/responses before all requirements are met.
2.3.2
Fixed python3 compatibility issues. Enabled tests on travis. Fixed tests failures on master branch.
2.3.1
Fixes previous release, which did not regenerate the required minified JavaScript files.
2.3.0
Increases assignment upload limit in JavaScript from 10MB to 20MB.