Blargh!

A bit further down the custom comment type/status rabit hole
- `wp_untrash_comment` and `wp_unspam_comment` both fail because they call on `wp_set_comment_status`
	- `wp_set_comment_status` fails if the status being set isn't a default WP one :P
- This works around it in a way that allows Unspam/Untrash links in the admin to work

Reworked some fave/flag count stuff
- Faves/flags are now stored in comment meta
- The fave/flag meta should get update when relevant feedback is deleted
- If it doesn't yet exist it'll get added for a given comment

There's some admin panel stuff waiting in the wings but not ready to merge in yet.