What problem are you trying to solve with Submitty
Currently instructors can upload any amount of course materials to their course. This should be restricted to prevent filling up disk space.

Describe the way you'd like to solve this problem
A config option (one of the ones under /usr/local/submitty/config should have a new configurable option that controls the disk space limit per course. This value should be read and if a new file upload for a course exceeds this value, the user is given an error message.

The user should also be able to see how much space they are taking in their course when uploading materials. Each course should have its own disk limit, e.g: course A's uploaded material does not count towards course B's but they both have the same global upper limit.

Describe any potential alternatives you'd tried to solve the problem
Related to restricting individual uploads as well