A 'View x submitted assignments' link informs teachers of the number of assignments submitted to-date

1. Login as student1 and submit a file for a Upload a single file assignment.
2. Login as a teacher and check that a 'View 1 submitted assignments' link is displayed on the assignment page and also the assignments index page.
3. Login as student2 and submit a file for a Upload a single file assignment.
4. Login as a teacher and check that the link now states 'View 2 submitted assignments'.