Add es6 back by default. (#429)

birkir · ctrlplusb · commit ef352850743a · 2017-04-21T20:09:06.000+02:00
diff --git a/config/values.js b/config/values.js
@@ -64,8 +64,7 @@ const values = {
     features: [
       // The default list.
       'default',
-      // If you want to add only es6 features.
-      // 'es6',
+      'es6',
     ],
   },
 
