This commit gives teachers the ability to regrade quizzes by using
different options per quiz question:
* Current Correct Only
* Full Credit (regardless of answer choice)
* Previous and Current Correct
* No Point change (for updating the display of a question)
Test Plan:
You'll want to run through each question regrade option making sure
scores change appropriately.
"I seldom end up where I wanted to go, but almost always end up where I
need to be." - Douglas Adams
Change-Id: I9dbb88154cd3ac630bf59dbf3e997a87f75649dc
Reviewed-on: https://gerrit.instructure.com/22018
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Derek DeVries <ddevries@instructure.com>
QA-Review: Myller de Araujo <myller@instructure.com>
Product-Review: Stanley Stuart <stanley@instructure.com>
Stanley Stuart