CLC-2683 Return nil instead of silly hash when user is not a student
CLC-2605 Don't be noisy on 404 errors from CFV
Merge pull request #1687 from ctweney/clc-2605

CLC-2605 Don't be noisy on 404 errors from CFV
Merge pull request #1685 from ctweney/clc-2683

CLC-2683 Return nil instead of silly hash when user is not a student