fix js syntax error, resolve fout issues

website/source/assets/javascripts/analytics.js

 document.addEventListener('turbolinks:load', function() {
   analytics.page()
-  
+
+  track('.downloads .download .details li a', function(el) {
     var m = el.href.match(/nomad_(.*?)_(.*?)_(.*?)\.zip/)
     return {
       event: 'Download',

website/source/assets/stylesheets/_global.scss

@@ -25,15 +25,6 @@ h1 {
   margin-bottom: 24px;
 }
 
-// Avoid FOUT
-.wf-loading {
-  visibility: hidden;
-}
-
-.wf-active, .wf-inactive {
-  visibility: visible;
-}
-
 @media (min-width: $screen-sm) and (max-width: $screen-md) {
   .container {
     padding: 0;