new mightyhive parts
edits
small content changes
new mightyhive parts
Use the new constants for submission contexts
Extend the string class with a urlify method
Use new urlify method for project, lesson, step
Merge pull request #987 from teamleada/Brian_homepage_edit

small content changes
merge conflict
merge conflicts
Add columns to quizzes
Rename quiz submissions table
Add subclasses of quizzes
Annotate quizzes
Move answer checking to correct subclasses
Change submitted answer to content
Make the quiz endpoint a post
Change quiz submission to quiz_submission_content
Convert to json and fix ajax
Fix relationship for quiz submissions for users