Adds polyfill for fetch and Intl (#162)

Author: cbothner

app/views/layouts/application.html.erb

@@ -16,6 +16,7 @@
     <%= javascript_pack_tag "manifest" %>
     <%= javascript_pack_tag "vendor" %>
 
+    <script src="https://cdn.polyfill.io/v2/polyfill.js?features=default,fetch,Intl"></script>
     <script src="https://use.typekit.net/adn1xoi.js"></script>
     <script>try{Typekit.load({ async: true  });}catch(e){}</script>
     <meta property="og:site_name" content="Gala" />