I think you have a typo in how you enable bootstrap JS. Take a look at <script class="cssdeck" src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.1/bootstrap.min.jss"></script> and note that you have .jss for the extension, and also ... the reason the link starts with // (double slash) is due to the lack of the http: or https: protocol, and they leave it so that it can be added.
You also forgot to enable jQuery (this is necessary to run JS to boot) and make sure you include it above boot JS or it will not work.
Here's the bone fiddle dropdown fiddle that works with everything included.
Scenario
HTML
<div class="dropdown"> <a class="dropdown-toggle btn" data-toggle="dropdown" href="#" >Dropdown trigger</a> <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel"> <li>Item One</li> <li>Item Two</li> </ul> </div>
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