update student select menu when rubric is used to grade
update student select menu when rubric is used to grade

Updates the select menu when a rubric is used to grade.

fixes GRADE-349

test plan:
 - Have a course with a teacher and some students
 - Have an assignment that has a rubric configured
 - Go into speedgrader as a teacher
 - Grade a student using the rubric
 - Note that the status icon in the student menu reflects the graded
   status.

Change-Id: I49abfd6f6baf9d1f6a44d12737b01b5c1573e250
Reviewed-on: https://gerrit.instructure.com/129405
Reviewed-by: Spencer Olson <7cc0890d6f1f70810a023e7173eca5724d6c8e49@instructure.com>
Reviewed-by: Derek Bender <d24d8a7ee520e34b1cec38800225d9f36b552df7@instructure.com>
Tested-by: Jenkins
QA-Review: Anju Reddy <851202533fb1f0b615e4547ba226c76996d060dd@instructure.com>
Product-Review: Keith T. Garner <a1a80143a840c140f31c3495ebbd9ec906e09fed@instructure.com>

djbender/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms