twbs/bootstrap — pull request #9347 by kevinSuttle (2013-08-11 20:36:20+00:00)
Title: Ensure proper use and location of role="banner"

http://blog.paciellogroup.com/2013/02/using-wai-aria-landmarks-2013/#tablex

http://www.w3.org/TR/wai-aria/roles#banner