Make Issues by Submitter prettier

(Incomplete Feature, To be Fixed , Priority: Medium, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Functions, Official Spaces
Summary: Issues by Submitter is currently ugly. It should have a separate section for each Submitter.
I can't figure out a good way to implement this yet. It really wants the _groupBy function, but I can't write that until we have complex Types...