Compare membership of finboard-groups-only and asa-official with DB

[adehnert]

We have code that theoretically keeps finboard-groups-only and asa-official in sync with the DB. We should compare the membership of those lists against what the DB says they should contain, and alert whenever there are differences. Differences are probably a sign that the code we have is buggy (or that somebody added or removed a list by hand, and the former, at least, should be done by adding to {finboard-groups,asa-official}-listeners instead).

Note that this can't be done until we actually believe our officers' lists are correct (see also #6, #154, and #155 for ways to speed this process).