twbs/bootstrap — pull request #13821 by joeynguyen (2014-06-13 20:24:32+00:00)
Title: *Fixed Dropdown Navigation links not working on Mobile Browsers.

I had the same problem that this user experienced and was able to resolve my issue with the fix that was the Solved Answer - http://stackoverflow.com/questions/17178606/bootstrap-dropdown-navigation-not-working-on-mobile-browsers.