3.1.1

• Release Announcement: http://www.yuiblog.com/blog/2010/05/05/3-1-1-and-2-8-1-released/
• Seed: http://yui.yahooapis.com/3.1.1/build/yui/yui-min.js
• Zip: http://yui.zenfs.com/releases/yui3/yui_3.1.1.zip
• GitHub: git checkout v3.1.1