message: Add noscript message if javascript is disabled
diff: </head>
  <body>
  {{content-for "assets"}}
  + <noscript>
  + <p>
  + For full functionality of this site it is necessary to enable JavaScript.
  + Here are the
  + <a href='https://www.enable-javascript.com/' target='_blank'> instructions how to enable JavaScript in your web browser</a>.
  + </p>
  + </noscript>
  {{content-for "body"}}
  <script src="{{rootURL}}ember_osf_web/assets/vendor.js"></script>
  