Automattic/Co-Authors-Plus — pull request #42 by asannad (2012-05-10 19:03:39+00:00)
Title: Add rel=author to coauthor links

Add filter to coauthors_posts_links_single to customize attributes while rendering co-author links.
Add new attribute rel=author for the link.

https://github.com/Automattic/Co-Authors-Plus/issues/41