Automattic/wpcom.js — pull request #45 by fredrocious (2014-09-11 08:38:29+00:00)
Title: Add/commentlikes

Comment Likes!

Adds support for comment likes mirroring post likes functionality

WP API docs:
http://developer.wordpress.com/docs/api/1/post/sites/%24site/comments/%24comment_ID/likes/new/