DRP Installation.html

<!-- Include Required Prerequisites -->
<script type="text/javascript" src="//cdn.jsdelivr.net/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" src="//cdn.jsdelivr.net/momentjs/2.9.0/moment.min.js"></script>
<link rel="stylesheet" type="text/css" href="//cdn.jsdelivr.net/bootstrap/3.3.2/css/bootstrap.css" />

<!-- Include Date Range Picker -->
<script type="text/javascript" src="//cdn.jsdelivr.net/bootstrap.daterangepicker/1/daterangepicker.js"></script>
<link rel="stylesheet" type="text/css" href="//cdn.jsdelivr.net/bootstrap.daterangepicker/1/daterangepicker-bs3.css" />

To load all these files you only need 2 request (plus other possible improvements: set path to minified version of bootstrap css, update jquery, boostrap & moment versions, remove type attributes (here why), always use https (here why)):

<!-- include all styles -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/g/bootstrap@3.3.4(css/bootstrap.min.css),bootstrap.daterangepicker@1(daterangepicker-bs3.css)">
<!-- include all scripts -->
<script src="https://cdn.jsdelivr.net/g/jquery@2.1.4,momentjs@2.10.3,bootstrap.daterangepicker@1"></script>

"The first 3-4 requests will be slower, as they are not yet cached. Afterwards, these dynamic files get cached and become static files (same as all others)."
jsDelivr CDN docs