handin: using get-student-score in a checker

[Wayne Harris]

I don't know if I'm doing this right, but I wanted to write the student's grade after writing the submission report.  I had to provide get-student-score in grading-utils.rkt.  I'd be surprised if I'm the first one to need this, so I think I'm probably misunderstanding things.

Also, just to learn where the grade would come from (on the status web application), I had to read the source code; I then learned about the grade file in the student's submission.  So I decided to write the grade file in my checker's post:. (But then I needed get-student-score.)

How do you guys write student's grade?