WIP: Outlining the API intended for Peer Grading Workflow.
Almost entirely documentation.
Quick commit in case we get snowed in
Updating the API and tests.
Updating the APIs with additional tests.
Added a few additional tests.
Added some additional documentation. Some quick cleanup.
Added a uuid to the submission model object
Fixing time zone warning on tests.
Moving pytz into base requirements
Updating doc and changing uuid so it is not the PK