twitter/bootstrap — pull request #8583 by liuyl (2013-07-24 09:14:55+00:00)
Title: set cursor to not-allowed for disabled elements

I changed all disabled elements's `cursor` property to `not-allowed`.

I don't know why they were `default`, but I think `cursor: not-allowed;` could make the users realize that the anchor is disabled, and nothing would happen if they click it.