title: smalot/bootstrap-datetimepicker navigation arrows missing
body: <p>I'm having problems getting the arrows showing in the Bootstrap3 version of DateTime Picker (<a href="https://github.com/smalot/bootstrap-datetimepicker" rel="nofollow">https://github.com/smalot/bootstrap-datetimepicker</a>).</p>
  
  <p>The example provided with the download is also missing the arrows, but the bootstrap2 example has them.</p>
  
  <p>Everything else is working correctly and clicking the location where the arrows should be navigate as expected. I'm assuming that the browser is searching for the icons and they're where they're supposed to be.</p>
  
  <p>Wondering if anyone has run into this issue and knows how to fix it? Otherwise maybe some suggestions as to how to troubleshoot would be appreciated. </p>