Add more Fontello icons: like, faulty, off-topic.
Replace ratings with like/wrong/off-topic votes, work in progress

Also update debiki-dao-rdb.
Tweak action list, add like/wrong vote info

- Move the Off-Topic vote to the More menu
- Remove whitespace so there's no space in front of ".".
Save like and wrong votes, highlight heart/warning icon.
Highlight user's own votes.
Show "X people think this comment is off-topic" too.
Delete votes. Update debiki-dao-rdb.
Tweak CSS

- Don't word wrap "<reply-icon> Reply"
- Don't indent title
Remove class Rating.
Merge branch 'topic-like-wrong-offtopic'.