Gravatar Extension Copyright (c) 2006-2010 MindTouch Inc. This extension allows embedding of Gravatar images. http://developer.mindtouch.com/App_Catalog/Gravatar http://scripts.mindtouch.com/logos/gravatar-logo.png gravatar Embed a Gravatar image. Plain email address, or hash of email address. (default: current user email) Image size. (default: 80) Image rating. (one of "g", "pg", "r", or "x"; default: "g") Default image. (one of "identicon", "wavatar", "monsterid", or custom image uri; default: gravatar logo)