The twitter.github.io/typeahead.js not compatible with bootstrap 3.
You can use this Typeahead which is compatible with twitter bootstrap 3
https://github.com/bassjobsen/Bootstrap-3-Typeahead
Actually the developer migrated bootstrap 2 code in to bootstrap 3 here is the details http://bassjobsen.weblogs.fm/migrate-your-templates-from-twitter-bootstrap-2-x-to-twitter-bootstrap-3/