Index: frontend/node_modules/thunky/index.js
===================================================================
--- frontend/node_modules/thunky/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/thunky/index.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,55 @@
+'use strict'
+
+var nextTick = nextTickArgs
+process.nextTick(upgrade, 42) // pass 42 and see if upgrade is called with it
+
+module.exports = thunky
+
+function thunky (fn) {
+  var state = run
+  return thunk
+
+  function thunk (callback) {
+    state(callback || noop)
+  }
+
+  function run (callback) {
+    var stack = [callback]
+    state = wait
+    fn(done)
+
+    function wait (callback) {
+      stack.push(callback)
+    }
+
+    function done (err) {
+      var args = arguments
+      state = isError(err) ? run : finished
+      while (stack.length) finished(stack.shift())
+
+      function finished (callback) {
+        nextTick(apply, callback, args)
+      }
+    }
+  }
+}
+
+function isError (err) { // inlined from util so this works in the browser
+  return Object.prototype.toString.call(err) === '[object Error]'
+}
+
+function noop () {}
+
+function apply (callback, args) {
+  callback.apply(null, args)
+}
+
+function upgrade (val) {
+  if (val === 42) nextTick = process.nextTick
+}
+
+function nextTickArgs (fn, a, b) {
+  process.nextTick(function () {
+    fn(a, b)
+  })
+}