Update turbo mode to only be open after submission deadline
Merge pull request #191 from edx/sanchez/overgrade-only-after-deadline

Update turbo mode to only be open after submission deadline
Rename JavaScript UI classes "views"
Move JavaScript response step code into separate view class.
Implement unsaved draft and save button enable/disable
Merge pull request #203 from edx/will/saved-but-not-submitted

TIM-304
Acknowledge Submission Deadline
Merge pull request #219 from edx/sanchez/acknowledge_submission_deadline

Acknowledge Submission Deadline
Changing is_open to is_closed. We're negative like that.