title: typeahead not working with lower version of ui bootstrap
body: <p>Here is the plunker <a href="http://plnkr.co/edit/fTdu3CymMXeo4Dfpu6Gm?p=preview" rel="nofollow">link</a>  if you changed the version of </p>
  
  <p><code>&lt;script src="//angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.4.0.js"&gt;&lt;/script&gt;</code> to </p>
  
  <p><code>ui-bootstrap-tpls-0.6.0.js</code>, it works fine but i need to make the typeahead in v0.4.0. 
  Is it possible?</p>