[Plugin: WP-Syntax Button] Update to plguin

I wrote an update to this plugin that adds a few options (a quick list for the language you’ll commonly use and a default starting line, both changeable from a new options page) and prevents to editor from creating blank
pre tags. I’d like to be made an author so I can submit my update (as well as maintain it should any future wordpress or wp-syntax updates break it. I may be missing something, but there doesn’t seem to be a way to request this through wordpress, nor a way to contact either of the current authors.
http://wordpress.org/extend/plugins/wp-syntax-button/