I was curious as to what you were exploring for 3.1 - Is there any type of roadmap you are working with? Also, I know there is another code-related plugin for moodle that integrates automated code-checking into quiz questions. However the java code that is run is done directly on the server, which I'm not too keen on.
Is there any documentation on how to utilize the jail server as well? It might be neat to have a suite of both assessment and assignment types that can utilize the jail server.