it works for non-eligible blocks with empty "Question title" (display_name).

InstructorToolBlockWithMixins" error that gets thrown when trying to
edit Instructor Tool blocks in Studio.

For example, ResultView should not manipulate the status area (but it
should maintain meta info about result sets).

"question" attribute.

results have been inserted into the DOM.

Backbone.js, and Underscore.js.

changes only).

Export bugfixes

Extended export