twitter/bootstrap — pull request #4031 by SoapSeller (2012-07-08 01:41:17+00:00)
Title: Support .disabled on tabs and pills

This is basicly an adaptation of @arnar work in https://github.com/twitter/bootstrap/pull/853
For bootstrap 2:
"This diff adds support for .disabled class on tabs and pills. They are rendered with light gray text and the JS ignores clicks."