edx/edx-platform — pull request #2498 by davestgermain (2014-02-06 16:22:00+00:00)
Title: Accessibility improvements to the sequence navigation

I've slightly changed the way tabs behave. Most of the changes are adding aria-labels and aria-hidden to the tabs and associated links, so that screen readers will hopefully be able to know which tab content goes to which link. But I also removed the pattern of copying the escaped html from `.seq_contents` into `#seq_content`.