pithos/pithos — pull request #64 by logannc (2014-02-07 08:46:42+00:00)
Title: Added working Thumb Up, Thumb Down feature. 

It successfully "loves","bans", and "unrates" when toggled.

It could be cleaned up to work with the already existing
icon-recognition functions, but that is a styling issue left for
later.

The thumb icon is public domain from wikimedia:
http://commons.wikimedia.org/wiki/File:Symbol_thumbs_up.svg