FIX: Edit ratelimits should be on the actor, not post owner
FIX: Only unhide flagged post if editor is the author

Also, rename @user to @editor in PostRevisor
Allow changing ownwership of posts by admins
Change comma-delim site settings to pipe-delim
Add UI for list site settings
Merge pull request #2203 from riking/change-owner

Change post owner functionality
Merge pull request #2207 from riking/list-setting

UI for list site settings