Remove http from Google search form and add 404.html permalink

404.md

@@ -4,6 +4,7 @@ title: "Page Not Found"
 description: "Page not found. Your pixels are in another canvas."
 sitemap: false
 search_omit: true
+permalink: /404.html
 ---  
 
 Sorry, but the page you were trying to view does not exist --- perhaps you can try searching for it below.
@@ -13,5 +14,5 @@ Sorry, but the page you were trying to view does not exist --- perhaps you can t
   var GOOG_FIXURL_SITE = '{{ site.url }}'
 </script>
 <script type="text/javascript"
-  src="http://linkhelp.clients.google.com/tbproxy/lh/wm/fixurl.js">
+  src="//linkhelp.clients.google.com/tbproxy/lh/wm/fixurl.js">
 </script>