A big commit with a bunch of node modules so I could run puppeteer for Walmart. Added some todos and Headway's templates.

Scripts/node_modules/universalify/index.js

@@ -1,25 +1,24 @@
 'use strict'
 
 exports.fromCallback = function (fn) {
-  return Object.defineProperty(function () {
-    if (typeof arguments[arguments.length - 1] === 'function') fn.apply(this, arguments)
+  return Object.defineProperty(function (...args) {
+    if (typeof args[args.length - 1] === 'function') fn.apply(this, args)
     else {
       return new Promise((resolve, reject) => {
-        arguments[arguments.length] = (err, res) => {
-          if (err) return reject(err)
-          resolve(res)
-        }
-        arguments.length++
-        fn.apply(this, arguments)
+        args.push((err, res) => (err != null) ? reject(err) : resolve(res))
+        fn.apply(this, args)
       })
     }
   }, 'name', { value: fn.name })
 }
 
 exports.fromPromise = function (fn) {
-  return Object.defineProperty(function () {
-    const cb = arguments[arguments.length - 1]
-    if (typeof cb !== 'function') return fn.apply(this, arguments)
-    else fn.apply(this, arguments).then(r => cb(null, r), cb)
+  return Object.defineProperty(function (...args) {
+    const cb = args[args.length - 1]
+    if (typeof cb !== 'function') return fn.apply(this, args)
+    else {
+      args.pop()
+      fn.apply(this, args).then(r => cb(null, r), cb)
+    }
   }, 'name', { value: fn.name })
 }