[Test Case] Students handout and make submission

[victorhuangwq]

As instructor

• add 2 late days to the course
• Add a handout file
• Add a submission limit of 2
• Make due date in the future

Act as a student

• check that you have 2 grace days on the course homepage
• download handout file
• make a submission, should be okay (so should have 1 more submission left)

As instructor

• change due date to be in the past
• allow for last day to hand in

Act as a student

• make a submission, should be okay (use late days)
• check that you can't submit again because you have used up 2 submissions
• check that you have 1 grace day left.