Use reduced credit when checking if problem is correct in Grades table.

[somiaj]

Use compute_unreduced_grade to determine if a problem is correct or not on the student's grade table to highlight correct problems.

[drgrice1]

I think this looks good. I only have a wording suggestion on the POD change for the grade_set method.

I am debating if it would be better if the grade_set handled the compute_unreduced_score computation, and instead of returning the array of problem records, only returned an array of the unreduced scores. I suppose leave it as it is for now, and if the unreduced score becomes something used more frequently elsewhere in combination with the grade_set results, then we can change it at that time.

[somiaj]

POD updated as suggested.

[somiaj]

It appears that #2617 modifies grade_set in a similar way to what is needed in this PR. Since this is a much smaller change, this should be delayed until after #2617 is merged, and I can update all the conflicts. I should be able to just use the changes to grade_set directly and only have to update the grades table.

Also should I include the suggested update in #2627, so non-zero grades to unattempted problems are also shown in the grade table?

[drgrice1]

You can add the non zero change to this.

[drgrice1]

Also if you update the grade_set method so that your changes are identical to the change in #2617, then it shouldn't conflict.

[somiaj]

Okay updated my changes to grade_set to match #2617, and this also will show non-zero status on unattempted problems.

[drgrice1]

Looks good. In theory it shouldn't matter on the merge order of this or #2617. Assuming the other changes are far enough away. Usually more than 5 lines away is enough.