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diff --git a/middleware/node_modules/ee-first/LICENSE b/middleware/node_modules/ee-first/LICENSE
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+
+The MIT License (MIT)
+
+Copyright (c) 2014 Jonathan Ong me@jongleberry.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/middleware/node_modules/ee-first/README.md b/middleware/node_modules/ee-first/README.md
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+# EE First
+
+[![NPM version][npm-image]][npm-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+[![Gittip][gittip-image]][gittip-url]
+
+Get the first event in a set of event emitters and event pairs,
+then clean up after itself.
+
+## Install
+
+```sh
+$ npm install ee-first
+```
+
+## API
+
+```js
+var first = require('ee-first')
+```
+
+### first(arr, listener)
+
+Invoke `listener` on the first event from the list specified in `arr`. `arr` is
+an array of arrays, with each array in the format `[ee, ...event]`. `listener`
+will be called only once, the first time any of the given events are emitted. If
+`error` is one of the listened events, then if that fires first, the `listener`
+will be given the `err` argument.
+
+The `listener` is invoked as `listener(err, ee, event, args)`, where `err` is the
+first argument emitted from an `error` event, if applicable; `ee` is the event
+emitter that fired; `event` is the string event name that fired; and `args` is an
+array of the arguments that were emitted on the event.
+
+```js
+var ee1 = new EventEmitter()
+var ee2 = new EventEmitter()
+
+first([
+  [ee1, 'close', 'end', 'error'],
+  [ee2, 'error']
+], function (err, ee, event, args) {
+  // listener invoked
+})
+```
+
+#### .cancel()
+
+The group of listeners can be cancelled before being invoked and have all the event
+listeners removed from the underlying event emitters.
+
+```js
+var thunk = first([
+  [ee1, 'close', 'end', 'error'],
+  [ee2, 'error']
+], function (err, ee, event, args) {
+  // listener invoked
+})
+
+// cancel and clean up
+thunk.cancel()
+```
+
+[npm-image]: https://img.shields.io/npm/v/ee-first.svg?style=flat-square
+[npm-url]: https://npmjs.org/package/ee-first
+[github-tag]: http://img.shields.io/github/tag/jonathanong/ee-first.svg?style=flat-square
+[github-url]: https://github.com/jonathanong/ee-first/tags
+[travis-image]: https://img.shields.io/travis/jonathanong/ee-first.svg?style=flat-square
+[travis-url]: https://travis-ci.org/jonathanong/ee-first
+[coveralls-image]: https://img.shields.io/coveralls/jonathanong/ee-first.svg?style=flat-square
+[coveralls-url]: https://coveralls.io/r/jonathanong/ee-first?branch=master
+[license-image]: http://img.shields.io/npm/l/ee-first.svg?style=flat-square
+[license-url]: LICENSE.md
+[downloads-image]: http://img.shields.io/npm/dm/ee-first.svg?style=flat-square
+[downloads-url]: https://npmjs.org/package/ee-first
+[gittip-image]: https://img.shields.io/gittip/jonathanong.svg?style=flat-square
+[gittip-url]: https://www.gittip.com/jonathanong/
diff --git a/middleware/node_modules/ee-first/index.js b/middleware/node_modules/ee-first/index.js
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+++ b/middleware/node_modules/ee-first/index.js
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+/*!
+ * ee-first
+ * Copyright(c) 2014 Jonathan Ong
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = first
+
+/**
+ * Get the first event in a set of event emitters and event pairs.
+ *
+ * @param {array} stuff
+ * @param {function} done
+ * @public
+ */
+
+function first(stuff, done) {
+  if (!Array.isArray(stuff))
+    throw new TypeError('arg must be an array of [ee, events...] arrays')
+
+  var cleanups = []
+
+  for (var i = 0; i < stuff.length; i++) {
+    var arr = stuff[i]
+
+    if (!Array.isArray(arr) || arr.length < 2)
+      throw new TypeError('each array member must be [ee, events...]')
+
+    var ee = arr[0]
+
+    for (var j = 1; j < arr.length; j++) {
+      var event = arr[j]
+      var fn = listener(event, callback)
+
+      // listen to the event
+      ee.on(event, fn)
+      // push this listener to the list of cleanups
+      cleanups.push({
+        ee: ee,
+        event: event,
+        fn: fn,
+      })
+    }
+  }
+
+  function callback() {
+    cleanup()
+    done.apply(null, arguments)
+  }
+
+  function cleanup() {
+    var x
+    for (var i = 0; i < cleanups.length; i++) {
+      x = cleanups[i]
+      x.ee.removeListener(x.event, x.fn)
+    }
+  }
+
+  function thunk(fn) {
+    done = fn
+  }
+
+  thunk.cancel = cleanup
+
+  return thunk
+}
+
+/**
+ * Create the event listener.
+ * @private
+ */
+
+function listener(event, done) {
+  return function onevent(arg1) {
+    var args = new Array(arguments.length)
+    var ee = this
+    var err = event === 'error'
+      ? arg1
+      : null
+
+    // copy args to prevent arguments escaping scope
+    for (var i = 0; i < args.length; i++) {
+      args[i] = arguments[i]
+    }
+
+    done(err, ee, event, args)
+  }
+}
diff --git a/middleware/node_modules/ee-first/package.json b/middleware/node_modules/ee-first/package.json
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+{
+  "name": "ee-first",
+  "description": "return the first event in a set of ee/event pairs",
+  "version": "1.1.1",
+  "author": {
+    "name": "Jonathan Ong",
+    "email": "me@jongleberry.com",
+    "url": "http://jongleberry.com",
+    "twitter": "https://twitter.com/jongleberry"
+  },
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "jonathanong/ee-first",
+  "devDependencies": {
+    "istanbul": "0.3.9",
+    "mocha": "2.2.5"
+  },
+  "files": [
+    "index.js",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}