Issue 1827

When test results files were uploaded to MarkUs, the TAs could see them, but the students cannot.  I took the naive approach of just copying the piece that I added from edit.html.erb.

I tested it to see that the file drop down appeared, but I had trouble testing it to see if a test results file also appeared, because I couldn't get the api to work with my local set up.  I'll try again.