added migrations for instant delivery

node_modules/ga-react-router/src/ga.js

@@ -0,0 +1,31 @@
+'use strict';
+if(typeof window !== 'undefined' && typeof GA_TRACKING_CODE !== 'undefined') {
+  (function(window, document, script, url, r, tag, firstScriptTag) {
+    window['GoogleAnalyticsObject']=r;
+    window[r] = window[r] || function() {
+      (window[r].q = window[r].q || []).push(arguments)
+    };
+    window[r].l = 1*new Date();
+    tag = document.createElement(script),
+    firstScriptTag = document.getElementsByTagName(script)[0];
+    tag.async = 1;
+    tag.src = url;
+    firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
+  })(
+    window,
+    document,
+    'script',
+    '//www.google-analytics.com/analytics.js',
+    'ga'
+  );
+
+  var ga = window.ga;
+
+  ga('create', GA_TRACKING_CODE, 'auto');
+
+  module.exports = function() {
+    return window.ga.apply(window.ga, arguments);
+  };
+} else {
+  module.exports = function() {console.log(arguments)};
+}

node_modules/ga-react-router/src/index.js

@@ -0,0 +1,12 @@
+'use strict';
+var ga = require('./ga');
+
+
+function analytics(state) {
+  ga('send', 'pageview', {
+    'page': state.path
+  });
+}
+
+
+module.exports = analytics;