Merge remote-tracking branch 'upstream/master' into slideshow-zoom

src/bundle.js

@@ -118,3 +118,14 @@ var classlist = require("classlist.js");
 _define("classlist-polyfill", function () {
     return classlist;
 });
+
+// Date-FNS
+var date_fns = require("date-fns");
+_define("date-fns", function () {
+    return date_fns;
+});
+
+var date_fns_locale = require("date-fns/locale");
+_define("date-fns/locale", function () {
+    return date_fns_locale;
+});