Right now it's just a simple check for SUGGESTION_QUORUM (currently
4) number of users agreeing on a set of new tags.
Log a moderation to the story submitter when this happens, and allow
moderations to be done by a non-specific user.
Issue #207
- add users.is_moderator and look at that for most things, not
is_admin
- make default user in readme be a moderator
- log moderator actions in story edits, comment
deletions/undeletions (and later, user disabling).
- remove ability for moderators to edit comments, there's really no
reason to.