Detailansicht verbessert

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parent ff07d4ef0b
commit 87e7673513
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--- a/express-server/node_modules/readdirp/LICENSE
+++ b/express-server/node_modules/readdirp/LICENSE
@@ -0,0 +1,20 @@
+This software is released under the MIT license:
+
+Copyright (c) 2012-2015 Thorsten Lorenz
+
+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.
--- a/express-server/node_modules/readdirp/README.md
+++ b/express-server/node_modules/readdirp/README.md
@@ -0,0 +1,204 @@
+# readdirp [![Build Status](https://secure.travis-ci.org/thlorenz/readdirp.svg)](http://travis-ci.org/thlorenz/readdirp)
+
+[![NPM](https://nodei.co/npm/readdirp.png?downloads=true&stars=true)](https://nodei.co/npm/readdirp/)
+
+Recursive version of [fs.readdir](http://nodejs.org/docs/latest/api/fs.html#fs_fs_readdir_path_callback). Exposes a **stream api**.
+
+```javascript
+var readdirp = require('readdirp')
+  , path = require('path')
+  , es = require('event-stream');
+
+// print out all JavaScript files along with their size
+
+var stream = readdirp({ root: path.join(__dirname), fileFilter: '*.js' });
+stream
+  .on('warn', function (err) {
+    console.error('non-fatal error', err);
+    // optionally call stream.destroy() here in order to abort and cause 'close' to be emitted
+  })
+  .on('error', function (err) { console.error('fatal error', err); })
+  .pipe(es.mapSync(function (entry) {
+    return { path: entry.path, size: entry.stat.size };
+  }))
+  .pipe(es.stringify())
+  .pipe(process.stdout);
+```
+
+Meant to be one of the recursive versions of [fs](http://nodejs.org/docs/latest/api/fs.html) functions, e.g., like [mkdirp](https://github.com/substack/node-mkdirp).
+
+**Table of Contents**  *generated with [DocToc](http://doctoc.herokuapp.com/)*
+
+- [Installation](#installation)
+- [API](#api)
+	- [entry stream](#entry-stream)
+	- [options](#options)
+	- [entry info](#entry-info)
+	- [Filters](#filters)
+	- [Callback API](#callback-api)
+		- [allProcessed ](#allprocessed)
+		- [fileProcessed](#fileprocessed)
+- [More Examples](#more-examples)
+	- [stream api](#stream-api)
+	- [stream api pipe](#stream-api-pipe)
+	- [grep](#grep)
+	- [using callback api](#using-callback-api)
+	- [tests](#tests)
+
+
+# Installation
+
+    npm install readdirp
+
+# API
+
+***var entryStream = readdirp (options)***
+
+Reads given root recursively and returns a `stream` of [entry info](#entry-info)s.
+
+## entry stream
+
+Behaves as follows:
+
+- `emit('data')` passes an [entry info](#entry-info) whenever one is found
+- `emit('warn')` passes a non-fatal `Error` that prevents a file/directory from being processed (i.e., if it is
+  inaccessible to the user)
+- `emit('error')` passes a fatal `Error` which also ends the stream (i.e., when illegal options where passed)
+- `emit('end')` called when all entries were found and no more will be emitted (i.e., we are done)
+- `emit('close')` called when the stream is destroyed via `stream.destroy()` (which could be useful if you want to
+  manually abort even on a non fatal error) - at that point the stream is no longer `readable` and no more entries,
+  warning or errors are emitted
+- to learn more about streams, consult the very detailed
+  [nodejs streams documentation](http://nodejs.org/api/stream.html) or the
+  [stream-handbook](https://github.com/substack/stream-handbook)
+
+
+## options
+
+- **root**: path in which to start reading and recursing into subdirectories
+
+- **fileFilter**: filter to include/exclude files found (see [Filters](#filters) for more)
+
+- **directoryFilter**: filter to include/exclude directories found and to recurse into (see [Filters](#filters) for more)
+
+- **depth**: depth at which to stop recursing even if more subdirectories are found
+
+- **entryType**: determines if data events on the stream should be emitted for `'files'`, `'directories'`, `'both'`, or `'all'`. Setting to `'all'` will also include entries for other types of file descriptors like character devices, unix sockets and named pipes. Defaults to `'files'`.
+
+- **lstat**: if `true`, readdirp uses `fs.lstat` instead of `fs.stat` in order to stat files and includes symlink entries in the stream along with files.
+
+## entry info
+
+Has the following properties:
+
+- **parentDir**     :  directory in which entry was found (relative to given root)
+- **fullParentDir** :  full path to parent directory
+- **name**          :  name of the file/directory
+- **path**          :  path to the file/directory (relative to given root)
+- **fullPath**      :  full path to the file/directory found
+- **stat**          :  built in [stat object](http://nodejs.org/docs/v0.4.9/api/fs.html#fs.Stats)
+- **Example**: (assuming root was `/User/dev/readdirp`)
+
+        parentDir     :  'test/bed/root_dir1',
+        fullParentDir :  '/User/dev/readdirp/test/bed/root_dir1',
+        name          :  'root_dir1_subdir1',
+        path          :  'test/bed/root_dir1/root_dir1_subdir1',
+        fullPath      :  '/User/dev/readdirp/test/bed/root_dir1/root_dir1_subdir1',
+        stat          :  [ ... ]
+
+## Filters
+
+There are three different ways to specify filters for files and directories respectively.
+
+- **function**: a function that takes an entry info as a parameter and returns true to include or false to exclude the entry
+
+- **glob string**: a string (e.g., `*.js`) which is matched using [minimatch](https://github.com/isaacs/minimatch), so go there for more
+    information.
+
+    Globstars (`**`) are not supported since specifying a recursive pattern for an already recursive function doesn't make sense.
+
+    Negated globs (as explained in the minimatch documentation) are allowed, e.g., `!*.txt` matches everything but text files.
+
+- **array of glob strings**: either need to be all inclusive or all exclusive (negated) patterns otherwise an error is thrown.
+
+    `[ '*.json', '*.js' ]` includes all JavaScript and Json files.
+
+
+    `[ '!.git', '!node_modules' ]` includes all directories except the '.git' and 'node_modules'.
+
+Directories that do not pass a filter will not be recursed into.
+
+## Callback API
+
+Although the stream api is recommended, readdirp also exposes a callback based api.
+
+***readdirp (options, callback1 [, callback2])***
+
+If callback2 is given, callback1 functions as the **fileProcessed** callback, and callback2 as the **allProcessed** callback.
+
+If only callback1 is given, it functions as the **allProcessed** callback.
+
+### allProcessed
+
+- function with err and res parameters, e.g., `function (err, res) { ... }`
+- **err**: array of errors that occurred during the operation, **res may still be present, even if errors occurred**
+- **res**: collection of file/directory [entry infos](#entry-info)
+
+### fileProcessed
+
+- function with [entry info](#entry-info) parameter e.g., `function (entryInfo) { ... }`
+
+
+# More Examples
+
+`on('error', ..)`, `on('warn', ..)` and `on('end', ..)` handling omitted for brevity
+
+```javascript
+var readdirp = require('readdirp');
+
+// Glob file filter
+readdirp({ root: './test/bed', fileFilter: '*.js' })
+  .on('data', function (entry) {
+    // do something with each JavaScript file entry
+  });
+
+// Combined glob file filters
+readdirp({ root: './test/bed', fileFilter: [ '*.js', '*.json' ] })
+  .on('data', function (entry) {
+    // do something with each JavaScript and Json file entry
+  });
+
+// Combined negated directory filters
+readdirp({ root: './test/bed', directoryFilter: [ '!.git', '!*modules' ] })
+  .on('data', function (entry) {
+    // do something with each file entry found outside '.git' or any modules directory
+  });
+
+// Function directory filter
+readdirp({ root: './test/bed', directoryFilter: function (di) { return di.name.length === 9; } })
+  .on('data', function (entry) {
+    // do something with each file entry found inside directories whose name has length 9
+  });
+
+// Limiting depth
+readdirp({ root: './test/bed', depth: 1 })
+  .on('data', function (entry) {
+    // do something with each file entry found up to 1 subdirectory deep
+  });
+
+// callback api
+readdirp({ root: '.' }, function(fileInfo) {
+   // do something with file entry here
+  }, function (err, res) {
+    // all done, move on or do final step for all file entries here
+});
+```
+
+Try more examples by following [instructions](https://github.com/paulmillr/readdirp/blob/master/examples/Readme.md)
+on how to get going.
+
+## tests
+
+The [readdirp tests](https://github.com/paulmillr/readdirp/blob/master/test/readdirp.js) also will give you a good idea on
+how things work.
+
--- a/express-server/node_modules/readdirp/node_modules/isarray/.npmignore
+++ b/express-server/node_modules/readdirp/node_modules/isarray/.npmignore
@@ -0,0 +1 @@
+node_modules
--- a/express-server/node_modules/readdirp/node_modules/isarray/.travis.yml
+++ b/express-server/node_modules/readdirp/node_modules/isarray/.travis.yml
@@ -0,0 +1,4 @@
+language: node_js
+node_js:
+  - "0.8"
+  - "0.10"
--- a/express-server/node_modules/readdirp/node_modules/isarray/Makefile
+++ b/express-server/node_modules/readdirp/node_modules/isarray/Makefile
@@ -0,0 +1,6 @@
+
+test:
+	@node_modules/.bin/tape test.js
+
+.PHONY: test
+
--- a/express-server/node_modules/readdirp/node_modules/isarray/README.md
+++ b/express-server/node_modules/readdirp/node_modules/isarray/README.md
@@ -0,0 +1,60 @@
+
+# isarray
+
+`Array#isArray` for older browsers.
+
+[![build status](https://secure.travis-ci.org/juliangruber/isarray.svg)](http://travis-ci.org/juliangruber/isarray)
+[![downloads](https://img.shields.io/npm/dm/isarray.svg)](https://www.npmjs.org/package/isarray)
+
+[![browser support](https://ci.testling.com/juliangruber/isarray.png)
+](https://ci.testling.com/juliangruber/isarray)
+
+## Usage
+
+```js
+var isArray = require('isarray');
+
+console.log(isArray([])); // => true
+console.log(isArray({})); // => false
+```
+
+## Installation
+
+With [npm](http://npmjs.org) do
+
+```bash
+$ npm install isarray
+```
+
+Then bundle for the browser with
+[browserify](https://github.com/substack/browserify).
+
+With [component](http://component.io) do
+
+```bash
+$ component install juliangruber/isarray
+```
+
+## License
+
+(MIT)
+
+Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
+
+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.
--- a/express-server/node_modules/readdirp/node_modules/isarray/component.json
+++ b/express-server/node_modules/readdirp/node_modules/isarray/component.json
@@ -0,0 +1,19 @@
+{
+  "name" : "isarray",
+  "description" : "Array#isArray for older browsers",
+  "version" : "0.0.1",
+  "repository" : "juliangruber/isarray",
+  "homepage": "https://github.com/juliangruber/isarray",
+  "main" : "index.js",
+  "scripts" : [
+    "index.js"
+  ],
+  "dependencies" : {},
+  "keywords": ["browser","isarray","array"],
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "license": "MIT"
+}
--- a/express-server/node_modules/readdirp/node_modules/isarray/index.js
+++ b/express-server/node_modules/readdirp/node_modules/isarray/index.js
@@ -0,0 +1,5 @@
+var toString = {}.toString;
+
+module.exports = Array.isArray || function (arr) {
+  return toString.call(arr) == '[object Array]';
+};
--- a/express-server/node_modules/readdirp/node_modules/isarray/package.json
+++ b/express-server/node_modules/readdirp/node_modules/isarray/package.json
@@ -0,0 +1,73 @@
+{
+  "_from": "isarray@~1.0.0",
+  "_id": "isarray@1.0.0",
+  "_inBundle": false,
+  "_integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
+  "_location": "/readdirp/isarray",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "isarray@~1.0.0",
+    "name": "isarray",
+    "escapedName": "isarray",
+    "rawSpec": "~1.0.0",
+    "saveSpec": null,
+    "fetchSpec": "~1.0.0"
+  },
+  "_requiredBy": [
+    "/readdirp/readable-stream"
+  ],
+  "_resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+  "_shasum": "bb935d48582cba168c06834957a54a3e07124f11",
+  "_spec": "isarray@~1.0.0",
+  "_where": "D:\\5CHITM\\Diplomarbeit\\SmartShopper\\SmartShopper\\express-server\\node_modules\\readdirp\\node_modules\\readable-stream",
+  "author": {
+    "name": "Julian Gruber",
+    "email": "mail@juliangruber.com",
+    "url": "http://juliangruber.com"
+  },
+  "bugs": {
+    "url": "https://github.com/juliangruber/isarray/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {},
+  "deprecated": false,
+  "description": "Array#isArray for older browsers",
+  "devDependencies": {
+    "tape": "~2.13.4"
+  },
+  "homepage": "https://github.com/juliangruber/isarray",
+  "keywords": [
+    "browser",
+    "isarray",
+    "array"
+  ],
+  "license": "MIT",
+  "main": "index.js",
+  "name": "isarray",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/juliangruber/isarray.git"
+  },
+  "scripts": {
+    "test": "tape test.js"
+  },
+  "testling": {
+    "files": "test.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/17..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest",
+      "android-browser/4.2..latest"
+    ]
+  },
+  "version": "1.0.0"
+}
--- a/express-server/node_modules/readdirp/node_modules/isarray/test.js
+++ b/express-server/node_modules/readdirp/node_modules/isarray/test.js
@@ -0,0 +1,20 @@
+var isArray = require('./');
+var test = require('tape');
+
+test('is array', function(t){
+  t.ok(isArray([]));
+  t.notOk(isArray({}));
+  t.notOk(isArray(null));
+  t.notOk(isArray(false));
+
+  var obj = {};
+  obj[0] = true;
+  t.notOk(isArray(obj));
+
+  var arr = [];
+  arr.foo = 'bar';
+  t.ok(isArray(arr));
+
+  t.end();
+});
+
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/.travis.yml
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/.travis.yml
@@ -0,0 +1,55 @@
+sudo: false
+language: node_js
+before_install:
+  - npm install -g npm@2
+  - test $NPM_LEGACY && npm install -g npm@latest-3 || npm install npm -g
+notifications:
+  email: false
+matrix:
+  fast_finish: true
+  include:
+  - node_js: '0.8'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.10'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.11'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.12'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 1
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 2
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 3
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 4
+    env: TASK=test
+  - node_js: 5
+    env: TASK=test
+  - node_js: 6
+    env: TASK=test
+  - node_js: 7
+    env: TASK=test
+  - node_js: 8
+    env: TASK=test
+  - node_js: 9
+    env: TASK=test
+script: "npm run $TASK"
+env:
+  global:
+  - secure: rE2Vvo7vnjabYNULNyLFxOyt98BoJexDqsiOnfiD6kLYYsiQGfr/sbZkPMOFm9qfQG7pjqx+zZWZjGSswhTt+626C0t/njXqug7Yps4c3dFblzGfreQHp7wNX5TFsvrxd6dAowVasMp61sJcRnB2w8cUzoe3RAYUDHyiHktwqMc=
+  - secure: g9YINaKAdMatsJ28G9jCGbSaguXCyxSTy+pBO6Ch0Cf57ZLOTka3HqDj8p3nV28LUIHZ3ut5WO43CeYKwt4AUtLpBS3a0dndHdY6D83uY6b2qh5hXlrcbeQTq2cvw2y95F7hm4D1kwrgZ7ViqaKggRcEupAL69YbJnxeUDKWEdI=
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/CONTRIBUTING.md
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/CONTRIBUTING.md
@@ -0,0 +1,38 @@
+# Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+* (a) The contribution was created in whole or in part by me and I
+  have the right to submit it under the open source license
+  indicated in the file; or
+
+* (b) The contribution is based upon previous work that, to the best
+  of my knowledge, is covered under an appropriate open source
+  license and I have the right under that license to submit that
+  work with modifications, whether created in whole or in part
+  by me, under the same open source license (unless I am
+  permitted to submit under a different license), as indicated
+  in the file; or
+
+* (c) The contribution was provided directly to me by some other
+  person who certified (a), (b) or (c) and I have not modified
+  it.
+
+* (d) I understand and agree that this project and the contribution
+  are public and that a record of the contribution (including all
+  personal information I submit with it, including my sign-off) is
+  maintained indefinitely and may be redistributed consistent with
+  this project or the open source license(s) involved.
+
+## Moderation Policy
+
+The [Node.js Moderation Policy] applies to this WG.
+
+## Code of Conduct
+
+The [Node.js Code of Conduct][] applies to this WG.
+
+[Node.js Code of Conduct]:
+https://github.com/nodejs/node/blob/master/CODE_OF_CONDUCT.md
+[Node.js Moderation Policy]:
+https://github.com/nodejs/TSC/blob/master/Moderation-Policy.md
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/GOVERNANCE.md
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/GOVERNANCE.md
@@ -0,0 +1,136 @@
+### Streams Working Group
+
+The Node.js Streams is jointly governed by a Working Group
+(WG)
+that is responsible for high-level guidance of the project.
+
+The WG has final authority over this project including:
+
+* Technical direction
+* Project governance and process (including this policy)
+* Contribution policy
+* GitHub repository hosting
+* Conduct guidelines
+* Maintaining the list of additional Collaborators
+
+For the current list of WG members, see the project
+[README.md](./README.md#current-project-team-members).
+
+### Collaborators
+
+The readable-stream GitHub repository is
+maintained by the WG and additional Collaborators who are added by the
+WG on an ongoing basis.
+
+Individuals making significant and valuable contributions are made
+Collaborators and given commit-access to the project. These
+individuals are identified by the WG and their addition as
+Collaborators is discussed during the WG meeting.
+
+_Note:_ If you make a significant contribution and are not considered
+for commit-access log an issue or contact a WG member directly and it
+will be brought up in the next WG meeting.
+
+Modifications of the contents of the readable-stream repository are
+made on
+a collaborative basis. Anybody with a GitHub account may propose a
+modification via pull request and it will be considered by the project
+Collaborators. All pull requests must be reviewed and accepted by a
+Collaborator with sufficient expertise who is able to take full
+responsibility for the change. In the case of pull requests proposed
+by an existing Collaborator, an additional Collaborator is required
+for sign-off. Consensus should be sought if additional Collaborators
+participate and there is disagreement around a particular
+modification. See _Consensus Seeking Process_ below for further detail
+on the consensus model used for governance.
+
+Collaborators may opt to elevate significant or controversial
+modifications, or modifications that have not found consensus to the
+WG for discussion by assigning the ***WG-agenda*** tag to a pull
+request or issue. The WG should serve as the final arbiter where
+required.
+
+For the current list of Collaborators, see the project
+[README.md](./README.md#members).
+
+### WG Membership
+
+WG seats are not time-limited.  There is no fixed size of the WG.
+However, the expected target is between 6 and 12, to ensure adequate
+coverage of important areas of expertise, balanced with the ability to
+make decisions efficiently.
+
+There is no specific set of requirements or qualifications for WG
+membership beyond these rules.
+
+The WG may add additional members to the WG by unanimous consensus.
+
+A WG member may be removed from the WG by voluntary resignation, or by
+unanimous consensus of all other WG members.
+
+Changes to WG membership should be posted in the agenda, and may be
+suggested as any other agenda item (see "WG Meetings" below).
+
+If an addition or removal is proposed during a meeting, and the full
+WG is not in attendance to participate, then the addition or removal
+is added to the agenda for the subsequent meeting.  This is to ensure
+that all members are given the opportunity to participate in all
+membership decisions.  If a WG member is unable to attend a meeting
+where a planned membership decision is being made, then their consent
+is assumed.
+
+No more than 1/3 of the WG members may be affiliated with the same
+employer.  If removal or resignation of a WG member, or a change of
+employment by a WG member, creates a situation where more than 1/3 of
+the WG membership shares an employer, then the situation must be
+immediately remedied by the resignation or removal of one or more WG
+members affiliated with the over-represented employer(s).
+
+### WG Meetings
+
+The WG meets occasionally on a Google Hangout On Air. A designated moderator
+approved by the WG runs the meeting. Each meeting should be
+published to YouTube.
+
+Items are added to the WG agenda that are considered contentious or
+are modifications of governance, contribution policy, WG membership,
+or release process.
+
+The intention of the agenda is not to approve or review all patches;
+that should happen continuously on GitHub and be handled by the larger
+group of Collaborators.
+
+Any community member or contributor can ask that something be added to
+the next meeting's agenda by logging a GitHub Issue. Any Collaborator,
+WG member or the moderator can add the item to the agenda by adding
+the ***WG-agenda*** tag to the issue.
+
+Prior to each WG meeting the moderator will share the Agenda with
+members of the WG. WG members can add any items they like to the
+agenda at the beginning of each meeting. The moderator and the WG
+cannot veto or remove items.
+
+The WG may invite persons or representatives from certain projects to
+participate in a non-voting capacity.
+
+The moderator is responsible for summarizing the discussion of each
+agenda item and sends it as a pull request after the meeting.
+
+### Consensus Seeking Process
+
+The WG follows a
+[Consensus
+Seeking](http://en.wikipedia.org/wiki/Consensus-seeking_decision-making)
+decision-making model.
+
+When an agenda item has appeared to reach a consensus the moderator
+will ask "Does anyone object?" as a final call for dissent from the
+consensus.
+
+If an agenda item cannot reach a consensus a WG member can call for
+either a closing vote or a vote to table the issue to the next
+meeting. The call for a vote must be seconded by a majority of the WG
+or else the discussion will continue. Simple majority wins.
+
+Note that changes to WG membership require a majority consensus.  See
+"WG Membership" above.
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/LICENSE
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/LICENSE
@@ -0,0 +1,47 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+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.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+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.
+"""
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/README.md
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/README.md
@@ -0,0 +1,58 @@
+# readable-stream
+
+***Node-core v8.11.1 streams for userland*** [![Build Status](https://travis-ci.org/nodejs/readable-stream.svg?branch=master)](https://travis-ci.org/nodejs/readable-stream)
+
+
+[![NPM](https://nodei.co/npm/readable-stream.png?downloads=true&downloadRank=true)](https://nodei.co/npm/readable-stream/)
+[![NPM](https://nodei.co/npm-dl/readable-stream.png?&months=6&height=3)](https://nodei.co/npm/readable-stream/)
+
+
+[![Sauce Test Status](https://saucelabs.com/browser-matrix/readable-stream.svg)](https://saucelabs.com/u/readable-stream)
+
+```bash
+npm install --save readable-stream
+```
+
+***Node-core streams for userland***
+
+This package is a mirror of the Streams2 and Streams3 implementations in
+Node-core.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.11.1/docs/api/stream.html).
+
+If you want to guarantee a stable streams base, regardless of what version of
+Node you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *"stream"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).
+
+As of version 2.0.0 **readable-stream** uses semantic versioning.
+
+# Streams Working Group
+
+`readable-stream` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+  project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+  notice of changes.
+
+<a name="members"></a>
+## Team Members
+
+* **Chris Dickinson** ([@chrisdickinson](https://github.com/chrisdickinson)) &lt;christopher.s.dickinson@gmail.com&gt;
+  - Release GPG key: 9554F04D7259F04124DE6B476D5A82AC7E37093B
+* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) &lt;calvin.metcalf@gmail.com&gt;
+  - Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242
+* **Rod Vagg** ([@rvagg](https://github.com/rvagg)) &lt;rod@vagg.org&gt;
+  - Release GPG key: DD8F2338BAE7501E3DD5AC78C273792F7D83545D
+* **Sam Newman** ([@sonewman](https://github.com/sonewman)) &lt;newmansam@outlook.com&gt;
+* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) &lt;mathiasbuus@gmail.com&gt;
+* **Domenic Denicola** ([@domenic](https://github.com/domenic)) &lt;d@domenic.me&gt;
+* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) &lt;matteo.collina@gmail.com&gt;
+  - Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E
+* **Irina Shestak** ([@lrlna](https://github.com/lrlna)) &lt;shestak.irina@gmail.com&gt;
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/doc/wg-meetings/2015-01-30.md
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/doc/wg-meetings/2015-01-30.md
@@ -0,0 +1,60 @@
+# streams WG Meeting 2015-01-30
+
+## Links
+
+* **Google Hangouts Video**: http://www.youtube.com/watch?v=I9nDOSGfwZg
+* **GitHub Issue**: https://github.com/iojs/readable-stream/issues/106
+* **Original Minutes Google Doc**: https://docs.google.com/document/d/17aTgLnjMXIrfjgNaTUnHQO7m3xgzHR2VXBTmi03Qii4/
+
+## Agenda
+
+Extracted from https://github.com/iojs/readable-stream/labels/wg-agenda prior to meeting.
+
+* adopt a charter [#105](https://github.com/iojs/readable-stream/issues/105)
+* release and versioning strategy [#101](https://github.com/iojs/readable-stream/issues/101)
+* simpler stream creation [#102](https://github.com/iojs/readable-stream/issues/102)
+* proposal: deprecate implicit flowing of streams [#99](https://github.com/iojs/readable-stream/issues/99)
+
+## Minutes
+
+### adopt a charter
+
+* group: +1's all around
+
+### What versioning scheme should be adopted?
+* group: +1’s 3.0.0
+* domenic+group: pulling in patches from other sources where appropriate
+* mikeal: version independently, suggesting versions for io.js
+* mikeal+domenic: work with TC to notify in advance of changes
+simpler stream creation
+
+### streamline creation of streams
+* sam: streamline creation of streams
+* domenic: nice simple solution posted
+  but, we lose the opportunity to change the model
+  may not be backwards incompatible (double check keys)
+
+  **action item:** domenic will check
+
+### remove implicit flowing of streams on(‘data’)
+* add isFlowing / isPaused
+* mikeal: worrying that we’re documenting polyfill methods – confuses users
+* domenic: more reflective API is probably good, with warning labels for users
+* new section for mad scientists (reflective stream access)
+* calvin: name the “third state”
+* mikeal: maybe borrow the name from whatwg?
+* domenic: we’re missing the “third state”
+* consensus: kind of difficult to name the third state
+* mikeal: figure out differences in states / compat
+* mathias: always flow on data – eliminates third state
+  * explore what it breaks
+
+**action items:**
+* ask isaac for ability to list packages by what public io.js APIs they use (esp. Stream)
+* ask rod/build for infrastructure
+* **chris**: explore the “flow on data” approach
+* add isPaused/isFlowing
+* add new docs section
+* move isPaused to that section
+
+
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/duplex-browser.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/duplex-browser.js
@@ -0,0 +1 @@
+module.exports = require('./lib/_stream_duplex.js');
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/duplex.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/duplex.js
@@ -0,0 +1 @@
+module.exports = require('./readable').Duplex
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_duplex.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_duplex.js
@@ -0,0 +1,131 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) {
+    keys.push(key);
+  }return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+
+util.inherits(Duplex, Readable);
+
+{
+  // avoid scope creep, the keys array can then be collected
+  var keys = objectKeys(Writable.prototype);
+  for (var v = 0; v < keys.length; v++) {
+    var method = keys[v];
+    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+  }
+}
+
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
+
+  Readable.call(this, options);
+  Writable.call(this, options);
+
+  if (options && options.readable === false) this.readable = false;
+
+  if (options && options.writable === false) this.writable = false;
+
+  this.allowHalfOpen = true;
+  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
+
+  this.once('end', onend);
+}
+
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// the no-half-open enforcer
+function onend() {
+  // if we allow half-open state, or if the writable side ended,
+  // then we're ok.
+  if (this.allowHalfOpen || this._writableState.ended) return;
+
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  pna.nextTick(onEndNT, this);
+}
+
+function onEndNT(self) {
+  self.end();
+}
+
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  get: function () {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
+  }
+});
+
+Duplex.prototype._destroy = function (err, cb) {
+  this.push(null);
+  this.end();
+
+  pna.nextTick(cb, err);
+};
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_passthrough.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_passthrough.js
@@ -0,0 +1,47 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+
+var Transform = require('./_stream_transform');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(PassThrough, Transform);
+
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
+
+  Transform.call(this, options);
+}
+
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_readable.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_readable.js
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_transform.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_transform.js
@@ -0,0 +1,214 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+
+'use strict';
+
+module.exports = Transform;
+
+var Duplex = require('./_stream_duplex');
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+util.inherits(Transform, Duplex);
+
+function afterTransform(er, data) {
+  var ts = this._transformState;
+  ts.transforming = false;
+
+  var cb = ts.writecb;
+
+  if (!cb) {
+    return this.emit('error', new Error('write callback called multiple times'));
+  }
+
+  ts.writechunk = null;
+  ts.writecb = null;
+
+  if (data != null) // single equals check for both `null` and `undefined`
+    this.push(data);
+
+  cb(er);
+
+  var rs = this._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    this._read(rs.highWaterMark);
+  }
+}
+
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
+
+  Duplex.call(this, options);
+
+  this._transformState = {
+    afterTransform: afterTransform.bind(this),
+    needTransform: false,
+    transforming: false,
+    writecb: null,
+    writechunk: null,
+    writeencoding: null
+  };
+
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
+
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
+
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
+
+    if (typeof options.flush === 'function') this._flush = options.flush;
+  }
+
+  // When the writable side finishes, then flush out anything remaining.
+  this.on('prefinish', prefinish);
+}
+
+function prefinish() {
+  var _this = this;
+
+  if (typeof this._flush === 'function') {
+    this._flush(function (er, data) {
+      done(_this, er, data);
+    });
+  } else {
+    done(this, null, null);
+  }
+}
+
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
+
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  throw new Error('_transform() is not implemented');
+};
+
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
+
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+
+  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
+  }
+};
+
+Transform.prototype._destroy = function (err, cb) {
+  var _this2 = this;
+
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+    _this2.emit('close');
+  });
+};
+
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
+
+  if (data != null) // single equals check for both `null` and `undefined`
+    stream.push(data);
+
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
+
+  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
+
+  return stream.push(null);
+}
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_writable.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/_stream_writable.js
@@ -0,0 +1,687 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+module.exports = Writable;
+
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
+}
+/* </replacement> */
+
+/*<replacement>*/
+var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
+/*</replacement>*/
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+/*<replacement>*/
+var util = require('core-util-is');
+util.inherits = require('inherits');
+/*</replacement>*/
+
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+var OurUint8Array = global.Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+
+/*</replacement>*/
+
+var destroyImpl = require('./internal/streams/destroy');
+
+util.inherits(Writable, Stream);
+
+function nop() {}
+
+function WritableState(options, stream) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream.
+  // These options can be provided separately as readableXXX and writableXXX.
+  var isDuplex = stream instanceof Duplex;
+
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
+
+  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
+
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  var hwm = options.highWaterMark;
+  var writableHwm = options.writableHighWaterMark;
+  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
+
+  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
+
+  // cast to ints.
+  this.highWaterMark = Math.floor(this.highWaterMark);
+
+  // if _final has been called
+  this.finalCalled = false;
+
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
+
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
+
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
+
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
+
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
+
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
+
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
+
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
+
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
+
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
+
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
+
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
+
+  // count buffered requests
+  this.bufferedRequestCount = 0;
+
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
+
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
+
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function () {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+    });
+  } catch (_) {}
+})();
+
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function (object) {
+      if (realHasInstance.call(this, object)) return true;
+      if (this !== Writable) return false;
+
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function (object) {
+    return object instanceof this;
+  };
+}
+
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
+
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
+    return new Writable(options);
+  }
+
+  this._writableState = new WritableState(options, this);
+
+  // legacy.
+  this.writable = true;
+
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
+
+    if (typeof options.writev === 'function') this._writev = options.writev;
+
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+
+    if (typeof options.final === 'function') this._final = options.final;
+  }
+
+  Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  this.emit('error', new Error('Cannot pipe, not readable'));
+};
+
+function writeAfterEnd(stream, cb) {
+  var er = new Error('write after end');
+  // TODO: defer error events consistently everywhere, not just the cb
+  stream.emit('error', er);
+  pna.nextTick(cb, er);
+}
+
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var valid = true;
+  var er = false;
+
+  if (chunk === null) {
+    er = new TypeError('May not write null values to stream');
+  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
+    er = new TypeError('Invalid non-string/buffer chunk');
+  }
+  if (er) {
+    stream.emit('error', er);
+    pna.nextTick(cb, er);
+    valid = false;
+  }
+  return valid;
+}
+
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = !state.objectMode && _isUint8Array(chunk);
+
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
+
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+
+  if (typeof cb !== 'function') cb = nop;
+
+  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
+
+  return ret;
+};
+
+Writable.prototype.cork = function () {
+  var state = this._writableState;
+
+  state.corked++;
+};
+
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
+
+  if (state.corked) {
+    state.corked--;
+
+    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
+
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
+
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = Buffer.from(chunk, encoding);
+  }
+  return chunk;
+}
+
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function () {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
+  var len = state.objectMode ? 1 : chunk.length;
+
+  state.length += len;
+
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
+
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
+
+  return ret;
+}
+
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
+
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    pna.nextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    pna.nextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    stream.emit('error', er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
+}
+
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
+
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
+
+  onwriteStateUpdate(state);
+
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state);
+
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
+
+    if (sync) {
+      /*<replacement>*/
+      asyncWrite(afterWrite, stream, state, finished, cb);
+      /*</replacement>*/
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
+}
+
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
+
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
+
+    var count = 0;
+    var allBuffers = true;
+    while (entry) {
+      buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
+      entry = entry.next;
+      count += 1;
+    }
+    buffer.allBuffers = allBuffers;
+
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+    state.bufferedRequestCount = 0;
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      state.bufferedRequestCount--;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
+
+    if (entry === null) state.lastBufferedRequest = null;
+  }
+
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
+
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new Error('_write() is not implemented'));
+};
+
+Writable.prototype._writev = null;
+
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
+
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
+
+  // ignore unnecessary end() calls.
+  if (!state.ending && !state.finished) endWritable(this, state, cb);
+};
+
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      stream.emit('error', err);
+    }
+    state.prefinished = true;
+    stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function') {
+      state.pendingcb++;
+      state.finalCalled = true;
+      pna.nextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
+  }
+}
+
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    prefinish(stream, state);
+    if (state.pendingcb === 0) {
+      state.finished = true;
+      stream.emit('finish');
+    }
+  }
+  return need;
+}
+
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
+
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+  if (state.corkedRequestsFree) {
+    state.corkedRequestsFree.next = corkReq;
+  } else {
+    state.corkedRequestsFree = corkReq;
+  }
+}
+
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  get: function () {
+    if (this._writableState === undefined) {
+      return false;
+    }
+    return this._writableState.destroyed;
+  },
+  set: function (value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
+
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  this.end();
+  cb(err);
+};
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/BufferList.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/BufferList.js
@@ -0,0 +1,79 @@
+'use strict';
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Buffer = require('safe-buffer').Buffer;
+var util = require('util');
+
+function copyBuffer(src, target, offset) {
+  src.copy(target, offset);
+}
+
+module.exports = function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
+
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
+
+  BufferList.prototype.push = function push(v) {
+    var entry = { data: v, next: null };
+    if (this.length > 0) this.tail.next = entry;else this.head = entry;
+    this.tail = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.unshift = function unshift(v) {
+    var entry = { data: v, next: this.head };
+    if (this.length === 0) this.tail = entry;
+    this.head = entry;
+    ++this.length;
+  };
+
+  BufferList.prototype.shift = function shift() {
+    if (this.length === 0) return;
+    var ret = this.head.data;
+    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+    --this.length;
+    return ret;
+  };
+
+  BufferList.prototype.clear = function clear() {
+    this.head = this.tail = null;
+    this.length = 0;
+  };
+
+  BufferList.prototype.join = function join(s) {
+    if (this.length === 0) return '';
+    var p = this.head;
+    var ret = '' + p.data;
+    while (p = p.next) {
+      ret += s + p.data;
+    }return ret;
+  };
+
+  BufferList.prototype.concat = function concat(n) {
+    if (this.length === 0) return Buffer.alloc(0);
+    if (this.length === 1) return this.head.data;
+    var ret = Buffer.allocUnsafe(n >>> 0);
+    var p = this.head;
+    var i = 0;
+    while (p) {
+      copyBuffer(p.data, ret, i);
+      i += p.data.length;
+      p = p.next;
+    }
+    return ret;
+  };
+
+  return BufferList;
+}();
+
+if (util && util.inspect && util.inspect.custom) {
+  module.exports.prototype[util.inspect.custom] = function () {
+    var obj = util.inspect({ length: this.length });
+    return this.constructor.name + ' ' + obj;
+  };
+}
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/destroy.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/destroy.js
@@ -0,0 +1,74 @@
+'use strict';
+
+/*<replacement>*/
+
+var pna = require('process-nextick-args');
+/*</replacement>*/
+
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
+
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
+
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
+      pna.nextTick(emitErrorNT, this, err);
+    }
+    return this;
+  }
+
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
+
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
+
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
+
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      pna.nextTick(emitErrorNT, _this, err);
+      if (_this._writableState) {
+        _this._writableState.errorEmitted = true;
+      }
+    } else if (cb) {
+      cb(err);
+    }
+  });
+
+  return this;
+}
+
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
+  }
+
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
+
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
+
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy
+};
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/stream-browser.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/stream-browser.js
@@ -0,0 +1 @@
+module.exports = require('events').EventEmitter;
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/stream.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/lib/internal/streams/stream.js
@@ -0,0 +1 @@
+module.exports = require('stream');
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/package.json
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/package.json
@@ -0,0 +1,81 @@
+{
+  "_from": "readable-stream@^2.0.2",
+  "_id": "readable-stream@2.3.6",
+  "_inBundle": false,
+  "_integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
+  "_location": "/readdirp/readable-stream",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "readable-stream@^2.0.2",
+    "name": "readable-stream",
+    "escapedName": "readable-stream",
+    "rawSpec": "^2.0.2",
+    "saveSpec": null,
+    "fetchSpec": "^2.0.2"
+  },
+  "_requiredBy": [
+    "/readdirp"
+  ],
+  "_resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
+  "_shasum": "b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf",
+  "_spec": "readable-stream@^2.0.2",
+  "_where": "D:\\5CHITM\\Diplomarbeit\\SmartShopper\\SmartShopper\\express-server\\node_modules\\readdirp",
+  "browser": {
+    "util": false,
+    "./readable.js": "./readable-browser.js",
+    "./writable.js": "./writable-browser.js",
+    "./duplex.js": "./duplex-browser.js",
+    "./lib/internal/streams/stream.js": "./lib/internal/streams/stream-browser.js"
+  },
+  "bugs": {
+    "url": "https://github.com/nodejs/readable-stream/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "core-util-is": "~1.0.0",
+    "inherits": "~2.0.3",
+    "isarray": "~1.0.0",
+    "process-nextick-args": "~2.0.0",
+    "safe-buffer": "~5.1.1",
+    "string_decoder": "~1.1.1",
+    "util-deprecate": "~1.0.1"
+  },
+  "deprecated": false,
+  "description": "Streams3, a user-land copy of the stream library from Node.js",
+  "devDependencies": {
+    "assert": "^1.4.0",
+    "babel-polyfill": "^6.9.1",
+    "buffer": "^4.9.0",
+    "lolex": "^2.3.2",
+    "nyc": "^6.4.0",
+    "tap": "^0.7.0",
+    "tape": "^4.8.0"
+  },
+  "homepage": "https://github.com/nodejs/readable-stream#readme",
+  "keywords": [
+    "readable",
+    "stream",
+    "pipe"
+  ],
+  "license": "MIT",
+  "main": "readable.js",
+  "name": "readable-stream",
+  "nyc": {
+    "include": [
+      "lib/**.js"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/readable-stream.git"
+  },
+  "scripts": {
+    "ci": "tap test/parallel/*.js test/ours/*.js --tap | tee test.tap && node test/verify-dependencies.js",
+    "cover": "nyc npm test",
+    "report": "nyc report --reporter=lcov",
+    "test": "tap test/parallel/*.js test/ours/*.js && node test/verify-dependencies.js"
+  },
+  "version": "2.3.6"
+}
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/passthrough.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/passthrough.js
@@ -0,0 +1 @@
+module.exports = require('./readable').PassThrough
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/readable-browser.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/readable-browser.js
@@ -0,0 +1,7 @@
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/readable.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/readable.js
@@ -0,0 +1,19 @@
+var Stream = require('stream');
+if (process.env.READABLE_STREAM === 'disable' && Stream) {
+  module.exports = Stream;
+  exports = module.exports = Stream.Readable;
+  exports.Readable = Stream.Readable;
+  exports.Writable = Stream.Writable;
+  exports.Duplex = Stream.Duplex;
+  exports.Transform = Stream.Transform;
+  exports.PassThrough = Stream.PassThrough;
+  exports.Stream = Stream;
+} else {
+  exports = module.exports = require('./lib/_stream_readable.js');
+  exports.Stream = Stream || exports;
+  exports.Readable = exports;
+  exports.Writable = require('./lib/_stream_writable.js');
+  exports.Duplex = require('./lib/_stream_duplex.js');
+  exports.Transform = require('./lib/_stream_transform.js');
+  exports.PassThrough = require('./lib/_stream_passthrough.js');
+}
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/transform.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/transform.js
@@ -0,0 +1 @@
+module.exports = require('./readable').Transform
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/writable-browser.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/writable-browser.js
@@ -0,0 +1 @@
+module.exports = require('./lib/_stream_writable.js');
--- a/express-server/node_modules/readdirp/node_modules/readable-stream/writable.js
+++ b/express-server/node_modules/readdirp/node_modules/readable-stream/writable.js
@@ -0,0 +1,8 @@
+var Stream = require("stream")
+var Writable = require("./lib/_stream_writable.js")
+
+if (process.env.READABLE_STREAM === 'disable') {
+  module.exports = Stream && Stream.Writable || Writable
+} else {
+  module.exports = Writable
+}
--- a/express-server/node_modules/readdirp/node_modules/string_decoder/.travis.yml
+++ b/express-server/node_modules/readdirp/node_modules/string_decoder/.travis.yml
@@ -0,0 +1,50 @@
+sudo: false
+language: node_js
+before_install:
+  - npm install -g npm@2
+  - test $NPM_LEGACY && npm install -g npm@latest-3 || npm install npm -g
+notifications:
+  email: false
+matrix:
+  fast_finish: true
+  include:
+  - node_js: '0.8'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.10'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.11'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: '0.12'
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 1
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 2
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 3
+    env:
+      - TASK=test
+      - NPM_LEGACY=true
+  - node_js: 4
+    env: TASK=test
+  - node_js: 5
+    env: TASK=test
+  - node_js: 6
+    env: TASK=test
+  - node_js: 7
+    env: TASK=test
+  - node_js: 8
+    env: TASK=test
+  - node_js: 9
+    env: TASK=test
--- a/express-server/node_modules/readdirp/node_modules/string_decoder/LICENSE
+++ b/express-server/node_modules/readdirp/node_modules/string_decoder/LICENSE
@@ -0,0 +1,48 @@
+Node.js is licensed for use as follows:
+
+"""
+Copyright Node.js contributors. All rights reserved.
+
+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.
+"""
+
+This license applies to parts of Node.js originating from the
+https://github.com/joyent/node repository:
+
+"""
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+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.
+"""
+
--- a/express-server/node_modules/readdirp/node_modules/string_decoder/README.md
+++ b/express-server/node_modules/readdirp/node_modules/string_decoder/README.md
@@ -0,0 +1,47 @@
+# string_decoder
+
+***Node-core v8.9.4 string_decoder for userland***
+
+
+[![NPM](https://nodei.co/npm/string_decoder.png?downloads=true&downloadRank=true)](https://nodei.co/npm/string_decoder/)
+[![NPM](https://nodei.co/npm-dl/string_decoder.png?&months=6&height=3)](https://nodei.co/npm/string_decoder/)
+
+
+```bash
+npm install --save string_decoder
+```
+
+***Node-core string_decoder for userland***
+
+This package is a mirror of the string_decoder implementation in Node-core.
+
+Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v8.9.4/docs/api/).
+
+As of version 1.0.0 **string_decoder** uses semantic versioning.
+
+## Previous versions
+
+Previous version numbers match the versions found in Node core, e.g. 0.10.24 matches Node 0.10.24, likewise 0.11.10 matches Node 0.11.10.
+
+## Update
+
+The *build/* directory contains a build script that will scrape the source from the [nodejs/node](https://github.com/nodejs/node) repo given a specific Node version.
+
+## Streams Working Group
+
+`string_decoder` is maintained by the Streams Working Group, which
+oversees the development and maintenance of the Streams API within
+Node.js. The responsibilities of the Streams Working Group include:
+
+* Addressing stream issues on the Node.js issue tracker.
+* Authoring and editing stream documentation within the Node.js project.
+* Reviewing changes to stream subclasses within the Node.js project.
+* Redirecting changes to streams from the Node.js project to this
+  project.
+* Assisting in the implementation of stream providers within Node.js.
+* Recommending versions of `readable-stream` to be included in Node.js.
+* Messaging about the future of streams to give the community advance
+  notice of changes.
+
+See [readable-stream](https://github.com/nodejs/readable-stream) for
+more details.
--- a/express-server/node_modules/readdirp/node_modules/string_decoder/lib/string_decoder.js
+++ b/express-server/node_modules/readdirp/node_modules/string_decoder/lib/string_decoder.js
@@ -0,0 +1,296 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// 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.
+
+'use strict';
+
+/*<replacement>*/
+
+var Buffer = require('safe-buffer').Buffer;
+/*</replacement>*/
+
+var isEncoding = Buffer.isEncoding || function (encoding) {
+  encoding = '' + encoding;
+  switch (encoding && encoding.toLowerCase()) {
+    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
+      return true;
+    default:
+      return false;
+  }
+};
+
+function _normalizeEncoding(enc) {
+  if (!enc) return 'utf8';
+  var retried;
+  while (true) {
+    switch (enc) {
+      case 'utf8':
+      case 'utf-8':
+        return 'utf8';
+      case 'ucs2':
+      case 'ucs-2':
+      case 'utf16le':
+      case 'utf-16le':
+        return 'utf16le';
+      case 'latin1':
+      case 'binary':
+        return 'latin1';
+      case 'base64':
+      case 'ascii':
+      case 'hex':
+        return enc;
+      default:
+        if (retried) return; // undefined
+        enc = ('' + enc).toLowerCase();
+        retried = true;
+    }
+  }
+};
+
+// Do not cache `Buffer.isEncoding` when checking encoding names as some
+// modules monkey-patch it to support additional encodings
+function normalizeEncoding(enc) {
+  var nenc = _normalizeEncoding(enc);
+  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
+  return nenc || enc;
+}
+
+// StringDecoder provides an interface for efficiently splitting a series of
+// buffers into a series of JS strings without breaking apart multi-byte
+// characters.
+exports.StringDecoder = StringDecoder;
+function StringDecoder(encoding) {
+  this.encoding = normalizeEncoding(encoding);
+  var nb;
+  switch (this.encoding) {
+    case 'utf16le':
+      this.text = utf16Text;
+      this.end = utf16End;
+      nb = 4;
+      break;
+    case 'utf8':
+      this.fillLast = utf8FillLast;
+      nb = 4;
+      break;
+    case 'base64':
+      this.text = base64Text;
+      this.end = base64End;
+      nb = 3;
+      break;
+    default:
+      this.write = simpleWrite;
+      this.end = simpleEnd;
+      return;
+  }
+  this.lastNeed = 0;
+  this.lastTotal = 0;
+  this.lastChar = Buffer.allocUnsafe(nb);
+}
+
+StringDecoder.prototype.write = function (buf) {
+  if (buf.length === 0) return '';
+  var r;
+  var i;
+  if (this.lastNeed) {
+    r = this.fillLast(buf);
+    if (r === undefined) return '';
+    i = this.lastNeed;
+    this.lastNeed = 0;
+  } else {
+    i = 0;
+  }
+  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
+  return r || '';
+};
+
+StringDecoder.prototype.end = utf8End;
+
+// Returns only complete characters in a Buffer
+StringDecoder.prototype.text = utf8Text;
+
+// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
+StringDecoder.prototype.fillLast = function (buf) {
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
+  this.lastNeed -= buf.length;
+};
+
+// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
+// continuation byte. If an invalid byte is detected, -2 is returned.
+function utf8CheckByte(byte) {
+  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
+  return byte >> 6 === 0x02 ? -1 : -2;
+}
+
+// Checks at most 3 bytes at the end of a Buffer in order to detect an
+// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
+// needed to complete the UTF-8 character (if applicable) are returned.
+function utf8CheckIncomplete(self, buf, i) {
+  var j = buf.length - 1;
+  if (j < i) return 0;
+  var nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 1;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) self.lastNeed = nb - 2;
+    return nb;
+  }
+  if (--j < i || nb === -2) return 0;
+  nb = utf8CheckByte(buf[j]);
+  if (nb >= 0) {
+    if (nb > 0) {
+      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
+    }
+    return nb;
+  }
+  return 0;
+}
+
+// Validates as many continuation bytes for a multi-byte UTF-8 character as
+// needed or are available. If we see a non-continuation byte where we expect
+// one, we "replace" the validated continuation bytes we've seen so far with
+// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
+// behavior. The continuation byte check is included three times in the case
+// where all of the continuation bytes for a character exist in the same buffer.
+// It is also done this way as a slight performance increase instead of using a
+// loop.
+function utf8CheckExtraBytes(self, buf, p) {
+  if ((buf[0] & 0xC0) !== 0x80) {
+    self.lastNeed = 0;
+    return '\ufffd';
+  }
+  if (self.lastNeed > 1 && buf.length > 1) {
+    if ((buf[1] & 0xC0) !== 0x80) {
+      self.lastNeed = 1;
+      return '\ufffd';
+    }
+    if (self.lastNeed > 2 && buf.length > 2) {
+      if ((buf[2] & 0xC0) !== 0x80) {
+        self.lastNeed = 2;
+        return '\ufffd';
+      }
+    }
+  }
+}
+
+// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
+function utf8FillLast(buf) {
+  var p = this.lastTotal - this.lastNeed;
+  var r = utf8CheckExtraBytes(this, buf, p);
+  if (r !== undefined) return r;
+  if (this.lastNeed <= buf.length) {
+    buf.copy(this.lastChar, p, 0, this.lastNeed);
+    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
+  }
+  buf.copy(this.lastChar, p, 0, buf.length);
+  this.lastNeed -= buf.length;
+}
+
+// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
+// partial character, the character's bytes are buffered until the required
+// number of bytes are available.
+function utf8Text(buf, i) {
+  var total = utf8CheckIncomplete(this, buf, i);
+  if (!this.lastNeed) return buf.toString('utf8', i);
+  this.lastTotal = total;
+  var end = buf.length - (total - this.lastNeed);
+  buf.copy(this.lastChar, 0, end);
+  return buf.toString('utf8', i, end);
+}
+
+// For UTF-8, a replacement character is added when ending on a partial
+// character.
+function utf8End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + '\ufffd';
+  return r;
+}
+
+// UTF-16LE typically needs two bytes per character, but even if we have an even
+// number of bytes available, we need to check if we end on a leading/high
+// surrogate. In that case, we need to wait for the next two bytes in order to
+// decode the last character properly.
+function utf16Text(buf, i) {
+  if ((buf.length - i) % 2 === 0) {
+    var r = buf.toString('utf16le', i);
+    if (r) {
+      var c = r.charCodeAt(r.length - 1);
+      if (c >= 0xD800 && c <= 0xDBFF) {
+        this.lastNeed = 2;
+        this.lastTotal = 4;
+        this.lastChar[0] = buf[buf.length - 2];
+        this.lastChar[1] = buf[buf.length - 1];
+        return r.slice(0, -1);
+      }
+    }
+    return r;
+  }
+  this.lastNeed = 1;
+  this.lastTotal = 2;
+  this.lastChar[0] = buf[buf.length - 1];
+  return buf.toString('utf16le', i, buf.length - 1);
+}
+
+// For UTF-16LE we do not explicitly append special replacement characters if we
+// end on a partial character, we simply let v8 handle that.
+function utf16End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) {
+    var end = this.lastTotal - this.lastNeed;
+    return r + this.lastChar.toString('utf16le', 0, end);
+  }
+  return r;
+}
+
+function base64Text(buf, i) {
+  var n = (buf.length - i) % 3;
+  if (n === 0) return buf.toString('base64', i);
+  this.lastNeed = 3 - n;
+  this.lastTotal = 3;
+  if (n === 1) {
+    this.lastChar[0] = buf[buf.length - 1];
+  } else {
+    this.lastChar[0] = buf[buf.length - 2];
+    this.lastChar[1] = buf[buf.length - 1];
+  }
+  return buf.toString('base64', i, buf.length - n);
+}
+
+function base64End(buf) {
+  var r = buf && buf.length ? this.write(buf) : '';
+  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
+  return r;
+}
+
+// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
+function simpleWrite(buf) {
+  return buf.toString(this.encoding);
+}
+
+function simpleEnd(buf) {
+  return buf && buf.length ? this.write(buf) : '';
+}
--- a/express-server/node_modules/readdirp/node_modules/string_decoder/package.json
+++ b/express-server/node_modules/readdirp/node_modules/string_decoder/package.json
@@ -0,0 +1,59 @@
+{
+  "_from": "string_decoder@~1.1.1",
+  "_id": "string_decoder@1.1.1",
+  "_inBundle": false,
+  "_integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+  "_location": "/readdirp/string_decoder",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "string_decoder@~1.1.1",
+    "name": "string_decoder",
+    "escapedName": "string_decoder",
+    "rawSpec": "~1.1.1",
+    "saveSpec": null,
+    "fetchSpec": "~1.1.1"
+  },
+  "_requiredBy": [
+    "/readdirp/readable-stream"
+  ],
+  "_resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+  "_shasum": "9cf1611ba62685d7030ae9e4ba34149c3af03fc8",
+  "_spec": "string_decoder@~1.1.1",
+  "_where": "D:\\5CHITM\\Diplomarbeit\\SmartShopper\\SmartShopper\\express-server\\node_modules\\readdirp\\node_modules\\readable-stream",
+  "bugs": {
+    "url": "https://github.com/nodejs/string_decoder/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "safe-buffer": "~5.1.0"
+  },
+  "deprecated": false,
+  "description": "The string_decoder module from Node core",
+  "devDependencies": {
+    "babel-polyfill": "^6.23.0",
+    "core-util-is": "^1.0.2",
+    "inherits": "^2.0.3",
+    "tap": "~0.4.8"
+  },
+  "homepage": "https://github.com/nodejs/string_decoder",
+  "keywords": [
+    "string",
+    "decoder",
+    "browser",
+    "browserify"
+  ],
+  "license": "MIT",
+  "main": "lib/string_decoder.js",
+  "name": "string_decoder",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/string_decoder.git"
+  },
+  "scripts": {
+    "ci": "tap test/parallel/*.js test/ours/*.js --tap | tee test.tap && node test/verify-dependencies.js",
+    "test": "tap test/parallel/*.js && node test/verify-dependencies"
+  },
+  "version": "1.1.1"
+}
--- a/express-server/node_modules/readdirp/package.json
+++ b/express-server/node_modules/readdirp/package.json
@@ -0,0 +1,88 @@
+{
+  "_from": "readdirp@^2.2.1",
+  "_id": "readdirp@2.2.1",
+  "_inBundle": false,
+  "_integrity": "sha512-1JU/8q+VgFZyxwrJ+SVIOsh+KywWGpds3NTqikiKpDMZWScmAYyKIgqkO+ARvNWJfXeXR1zxz7aHF4u4CyH6vQ==",
+  "_location": "/readdirp",
+  "_phantomChildren": {
+    "core-util-is": "1.0.2",
+    "inherits": "2.0.3",
+    "process-nextick-args": "2.0.0",
+    "safe-buffer": "5.1.2",
+    "util-deprecate": "1.0.2"
+  },
+  "_requested": {
+    "type": "range",
+    "registry": true,
+    "raw": "readdirp@^2.2.1",
+    "name": "readdirp",
+    "escapedName": "readdirp",
+    "rawSpec": "^2.2.1",
+    "saveSpec": null,
+    "fetchSpec": "^2.2.1"
+  },
+  "_requiredBy": [
+    "/chokidar"
+  ],
+  "_resolved": "https://registry.npmjs.org/readdirp/-/readdirp-2.2.1.tgz",
+  "_shasum": "0e87622a3325aa33e892285caf8b4e846529a525",
+  "_spec": "readdirp@^2.2.1",
+  "_where": "D:\\5CHITM\\Diplomarbeit\\SmartShopper\\SmartShopper\\express-server\\node_modules\\chokidar",
+  "author": {
+    "name": "Thorsten Lorenz",
+    "email": "thlorenz@gmx.de",
+    "url": "thlorenz.com"
+  },
+  "bugs": {
+    "url": "https://github.com/paulmillr/readdirp/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "graceful-fs": "^4.1.11",
+    "micromatch": "^3.1.10",
+    "readable-stream": "^2.0.2"
+  },
+  "deprecated": false,
+  "description": "Recursive version of fs.readdir with streaming api.",
+  "devDependencies": {
+    "nave": "^0.5.1",
+    "proxyquire": "^1.7.9",
+    "tap": "1.3.2",
+    "through2": "^2.0.0"
+  },
+  "engines": {
+    "node": ">=0.10"
+  },
+  "files": [
+    "readdirp.js",
+    "stream-api.js"
+  ],
+  "homepage": "https://github.com/paulmillr/readdirp",
+  "keywords": [
+    "recursive",
+    "fs",
+    "stream",
+    "streams",
+    "readdir",
+    "filesystem",
+    "find",
+    "filter"
+  ],
+  "license": "MIT",
+  "main": "readdirp.js",
+  "name": "readdirp",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/paulmillr/readdirp.git"
+  },
+  "scripts": {
+    "test": "npm run test-main",
+    "test-0.10": "nave use 0.10 npm run test-main",
+    "test-0.12": "nave use 0.12 npm run test-main",
+    "test-4": "nave use 4.4 npm run test-main",
+    "test-6": "nave use 6.2 npm run test-main",
+    "test-all": "npm run test-main && npm run test-0.10 && npm run test-0.12 && npm run test-4 && npm run test-6",
+    "test-main": "(cd test && set -e; for t in ./*.js; do node $t; done)"
+  },
+  "version": "2.2.1"
+}
--- a/express-server/node_modules/readdirp/readdirp.js
+++ b/express-server/node_modules/readdirp/readdirp.js
@@ -0,0 +1,294 @@
+'use strict';
+
+var fs        =  require('graceful-fs')
+  , path      =  require('path')
+  , micromatch =  require('micromatch').isMatch
+  , toString  =  Object.prototype.toString
+  ;
+
+
+// Standard helpers
+function isFunction (obj) {
+  return toString.call(obj) === '[object Function]';
+}
+
+function isString (obj) {
+  return toString.call(obj) === '[object String]';
+}
+
+function isUndefined (obj) {
+  return obj === void 0;
+}
+
+/**
+ * Main function which ends up calling readdirRec and reads all files and directories in given root recursively.
+ * @param { Object }   opts     Options to specify root (start directory), filters and recursion depth
+ * @param { function } callback1  When callback2 is given calls back for each processed file - function (fileInfo) { ... },
+ *                                when callback2 is not given, it behaves like explained in callback2
+ * @param { function } callback2  Calls back once all files have been processed with an array of errors and file infos
+ *                                function (err, fileInfos) { ... }
+ */
+function readdir(opts, callback1, callback2) {
+  var stream
+    , handleError
+    , handleFatalError
+    , errors = []
+    , readdirResult = {
+        directories: []
+      , files: []
+    }
+    , fileProcessed
+    , allProcessed
+    , realRoot
+    , aborted = false
+    , paused = false
+    ;
+
+  // If no callbacks were given we will use a streaming interface
+  if (isUndefined(callback1)) {
+    var api          =  require('./stream-api')();
+    stream           =  api.stream;
+    callback1        =  api.processEntry;
+    callback2        =  api.done;
+    handleError      =  api.handleError;
+    handleFatalError =  api.handleFatalError;
+
+    stream.on('close', function () { aborted = true; });
+    stream.on('pause', function () { paused = true; });
+    stream.on('resume', function () { paused = false; });
+  } else {
+    handleError      =  function (err) { errors.push(err); };
+    handleFatalError =  function (err) {
+      handleError(err);
+      allProcessed(errors, null);
+    };
+  }
+
+  if (isUndefined(opts)){
+    handleFatalError(new Error (
+      'Need to pass at least one argument: opts! \n' +
+      'https://github.com/paulmillr/readdirp#options'
+      )
+    );
+    return stream;
+  }
+
+  opts.root            =  opts.root            || '.';
+  opts.fileFilter      =  opts.fileFilter      || function() { return true; };
+  opts.directoryFilter =  opts.directoryFilter || function() { return true; };
+  opts.depth           =  typeof opts.depth === 'undefined' ? 999999999 : opts.depth;
+  opts.entryType       =  opts.entryType       || 'files';
+
+  var statfn = opts.lstat === true ? fs.lstat.bind(fs) : fs.stat.bind(fs);
+
+  if (isUndefined(callback2)) {
+    fileProcessed = function() { };
+    allProcessed = callback1;
+  } else {
+    fileProcessed = callback1;
+    allProcessed = callback2;
+  }
+
+  function normalizeFilter (filter) {
+
+    if (isUndefined(filter)) return undefined;
+
+    function isNegated (filters) {
+
+      function negated(f) {
+        return f.indexOf('!') === 0;
+      }
+
+      var some = filters.some(negated);
+      if (!some) {
+        return false;
+      } else {
+        if (filters.every(negated)) {
+          return true;
+        } else {
+          // if we detect illegal filters, bail out immediately
+          throw new Error(
+            'Cannot mix negated with non negated glob filters: ' + filters + '\n' +
+            'https://github.com/paulmillr/readdirp#filters'
+          );
+        }
+      }
+    }
+
+    // Turn all filters into a function
+    if (isFunction(filter)) {
+
+      return filter;
+
+    } else if (isString(filter)) {
+
+      return function (entryInfo) {
+        return micromatch(entryInfo.name, filter.trim());
+      };
+
+    } else if (filter && Array.isArray(filter)) {
+
+      if (filter) filter = filter.map(function (f) {
+        return f.trim();
+      });
+
+      return isNegated(filter) ?
+        // use AND to concat multiple negated filters
+        function (entryInfo) {
+          return filter.every(function (f) {
+            return micromatch(entryInfo.name, f);
+          });
+        }
+        :
+        // use OR to concat multiple inclusive filters
+        function (entryInfo) {
+          return filter.some(function (f) {
+            return micromatch(entryInfo.name, f);
+          });
+        };
+    }
+  }
+
+  function processDir(currentDir, entries, callProcessed) {
+    if (aborted) return;
+    var total = entries.length
+      , processed = 0
+      , entryInfos = []
+      ;
+
+    fs.realpath(currentDir, function(err, realCurrentDir) {
+      if (aborted) return;
+      if (err) {
+        handleError(err);
+        callProcessed(entryInfos);
+        return;
+      }
+
+      var relDir = path.relative(realRoot, realCurrentDir);
+
+      if (entries.length === 0) {
+        callProcessed([]);
+      } else {
+        entries.forEach(function (entry) {
+
+          var fullPath = path.join(realCurrentDir, entry)
+            , relPath  = path.join(relDir, entry);
+
+          statfn(fullPath, function (err, stat) {
+            if (err) {
+              handleError(err);
+            } else {
+              entryInfos.push({
+                  name          :  entry
+                , path          :  relPath   // relative to root
+                , fullPath      :  fullPath
+
+                , parentDir     :  relDir    // relative to root
+                , fullParentDir :  realCurrentDir
+
+                , stat          :  stat
+              });
+            }
+            processed++;
+            if (processed === total) callProcessed(entryInfos);
+          });
+        });
+      }
+    });
+  }
+
+  function readdirRec(currentDir, depth, callCurrentDirProcessed) {
+    var args = arguments;
+    if (aborted) return;
+    if (paused) {
+      setImmediate(function () {
+        readdirRec.apply(null, args);
+      })
+      return;
+    }
+
+    fs.readdir(currentDir, function (err, entries) {
+      if (err) {
+        handleError(err);
+        callCurrentDirProcessed();
+        return;
+      }
+
+      processDir(currentDir, entries, function(entryInfos) {
+
+        var subdirs = entryInfos
+          .filter(function (ei) { return ei.stat.isDirectory() && opts.directoryFilter(ei); });
+
+        subdirs.forEach(function (di) {
+          if(opts.entryType === 'directories' || opts.entryType === 'both' || opts.entryType === 'all') {
+            fileProcessed(di);
+          }
+          readdirResult.directories.push(di);
+        });
+
+        entryInfos
+          .filter(function(ei) {
+            var isCorrectType = opts.entryType === 'all' ?
+              !ei.stat.isDirectory() : ei.stat.isFile() || ei.stat.isSymbolicLink();
+            return isCorrectType && opts.fileFilter(ei);
+          })
+          .forEach(function (fi) {
+            if(opts.entryType === 'files' || opts.entryType === 'both' || opts.entryType === 'all') {
+              fileProcessed(fi);
+            }
+            readdirResult.files.push(fi);
+          });
+
+        var pendingSubdirs = subdirs.length;
+
+        // Be done if no more subfolders exist or we reached the maximum desired depth
+        if(pendingSubdirs === 0 || depth === opts.depth) {
+          callCurrentDirProcessed();
+        } else {
+          // recurse into subdirs, keeping track of which ones are done
+          // and call back once all are processed
+          subdirs.forEach(function (subdir) {
+            readdirRec(subdir.fullPath, depth + 1, function () {
+              pendingSubdirs = pendingSubdirs - 1;
+              if(pendingSubdirs === 0) {
+                callCurrentDirProcessed();
+              }
+            });
+          });
+        }
+      });
+    });
+  }
+
+  // Validate and normalize filters
+  try {
+    opts.fileFilter = normalizeFilter(opts.fileFilter);
+    opts.directoryFilter = normalizeFilter(opts.directoryFilter);
+  } catch (err) {
+    // if we detect illegal filters, bail out immediately
+    handleFatalError(err);
+    return stream;
+  }
+
+  // If filters were valid get on with the show
+  fs.realpath(opts.root, function(err, res) {
+    if (err) {
+      handleFatalError(err);
+      return stream;
+    }
+
+    realRoot = res;
+    readdirRec(opts.root, 0, function () {
+      // All errors are collected into the errors array
+      if (errors.length > 0) {
+        allProcessed(errors, readdirResult);
+      } else {
+        allProcessed(null, readdirResult);
+      }
+    });
+  });
+
+  return stream;
+}
+
+module.exports = readdir;
--- a/express-server/node_modules/readdirp/stream-api.js
+++ b/express-server/node_modules/readdirp/stream-api.js
@@ -0,0 +1,98 @@
+'use strict';
+
+var stream = require('readable-stream');
+var util = require('util');
+
+var Readable = stream.Readable;
+
+module.exports = ReaddirpReadable;
+
+util.inherits(ReaddirpReadable, Readable);
+
+function ReaddirpReadable (opts) {
+  if (!(this instanceof ReaddirpReadable)) return new ReaddirpReadable(opts);
+
+  opts = opts || {};
+
+  opts.objectMode = true;
+  Readable.call(this, opts);
+
+  // backpressure not implemented at this point
+  this.highWaterMark = Infinity;
+
+  this._destroyed = false;
+  this._paused = false;
+  this._warnings = [];
+  this._errors = [];
+
+  this._pauseResumeErrors();
+}
+
+var proto = ReaddirpReadable.prototype;
+
+proto._pauseResumeErrors = function () {
+  var self = this;
+  self.on('pause', function () { self._paused = true });
+  self.on('resume', function () {
+    if (self._destroyed) return;
+    self._paused = false;
+
+    self._warnings.forEach(function (err) { self.emit('warn', err) });
+    self._warnings.length = 0;
+
+    self._errors.forEach(function (err) { self.emit('error', err) });
+    self._errors.length = 0;
+  })
+}
+
+// called for each entry
+proto._processEntry = function (entry) {
+  if (this._destroyed) return;
+  this.push(entry);
+}
+
+proto._read = function () { }
+
+proto.destroy = function () {
+  // when stream is destroyed it will emit nothing further, not even errors or warnings
+  this.push(null);
+  this.readable = false;
+  this._destroyed = true;
+  this.emit('close');
+}
+
+proto._done = function () {
+  this.push(null);
+}
+
+// we emit errors and warnings async since we may handle errors like invalid args
+// within the initial event loop before any event listeners subscribed
+proto._handleError = function (err) {
+  var self = this;
+  setImmediate(function () {
+    if (self._paused) return self._warnings.push(err);
+    if (!self._destroyed) self.emit('warn', err);
+  });
+}
+
+proto._handleFatalError = function (err) {
+  var self = this;
+  setImmediate(function () {
+    if (self._paused) return self._errors.push(err);
+    if (!self._destroyed) self.emit('error', err);
+  });
+}
+
+function createStreamAPI () {
+  var stream = new ReaddirpReadable();
+
+  return {
+      stream           :  stream
+    , processEntry     :  stream._processEntry.bind(stream)
+    , done             :  stream._done.bind(stream)
+    , handleError      :  stream._handleError.bind(stream)
+    , handleFatalError :  stream._handleFatalError.bind(stream)
+  };
+}
+
+module.exports = createStreamAPI;
				`@@ -0,0 +1 @@`
				`module.exports = require('./lib/_stream_duplex.js');`
				`@@ -0,0 +1 @@`
				`module.exports = require('./readable').Duplex`
				`@@ -0,0 +1 @@`
				`module.exports = require('events').EventEmitter;`