Working on supporting infrastructure

With the assignment I wrote out for test to other course staff, I've turned my attention to developing tools related to the grading process. We want students who didn't complete previous segments on time to still be able to work on the current segment, so there needs to be a way to use a known-good solution for past segments. That needs to be done without distributing source code so we can reuse the assignment next semester. I started a tool at the beginning of the summer to make this possible, but it will need more work to be able to support what the assignment has become.