Commit

11 files changed, 900 insertions, 0 deletions

diff --git a/src/node_modules/object-keys/.editorconfig b/src/node_modules/object-keys/.editorconfig
new file mode 100644
index 0000000..eaa2141
--- /dev/null
+++ b/src/node_modules/object-keys/.editorconfig
@@ -0,0 +1,13 @@
+root = true
+
+[*]
+indent_style = tab;
+insert_final_newline = true;
+quote_type = auto;
+space_after_anonymous_functions = true;
+space_after_control_statements = true;
+spaces_around_operators = true;
+trim_trailing_whitespace = true;
+spaces_in_brackets = false;
+end_of_line = lf;
+
diff --git a/src/node_modules/object-keys/.eslintrc b/src/node_modules/object-keys/.eslintrc
new file mode 100644
index 0000000..9a8d5b0
--- /dev/null
+++ b/src/node_modules/object-keys/.eslintrc
@@ -0,0 +1,17 @@
+{
+	"root": true,
+
+	"extends": "@ljharb",
+
+	"rules": {
+		"complexity": [2, 23],
+		"id-length": [2, { "min": 1, "max": 40 }],
+		"max-params": [2, 3],
+		"max-statements": [2, 23],
+		"max-statements-per-line": [2, { "max": 2 }],
+		"no-extra-parens": [1],
+		"no-invalid-this": [1],
+		"no-restricted-syntax": [2, "BreakStatement", "ContinueStatement", "LabeledStatement", "WithStatement"],
+		"operator-linebreak": [2, "after"]
+	}
+}
diff --git a/src/node_modules/object-keys/.travis.yml b/src/node_modules/object-keys/.travis.yml
new file mode 100644
index 0000000..94a6ce4
--- /dev/null
+++ b/src/node_modules/object-keys/.travis.yml
@@ -0,0 +1,277 @@
+language: node_js
+os:
+ - linux
+node_js:
+  - "11.8"
+  - "10.15"
+  - "9.11"
+  - "8.15"
+  - "7.10"
+  - "6.16"
+  - "5.12"
+  - "4.9"
+  - "iojs-v3.3"
+  - "iojs-v2.5"
+  - "iojs-v1.8"
+  - "0.12"
+  - "0.10"
+  - "0.8"
+before_install:
+  - 'case "${TRAVIS_NODE_VERSION}" in 0.*) export NPM_CONFIG_STRICT_SSL=false ;; esac'
+  - 'nvm install-latest-npm'
+install:
+  - 'if [ "${TRAVIS_NODE_VERSION}" = "0.6" ] || [ "${TRAVIS_NODE_VERSION}" = "0.9" ]; then nvm install --latest-npm 0.8 && npm install && nvm use "${TRAVIS_NODE_VERSION}"; else npm install; fi;'
+script:
+  - 'if [ -n "${PRETEST-}" ]; then npm run pretest ; fi'
+  - 'if [ -n "${POSTTEST-}" ]; then npm run posttest ; fi'
+  - 'if [ -n "${COVERAGE-}" ]; then npm run coverage ; fi'
+  - 'if [ -n "${TEST-}" ]; then npm run tests-only ; fi'
+sudo: false
+env:
+  - TEST=true
+matrix:
+  fast_finish: true
+  include:
+    - node_js: "lts/*"
+      env: PRETEST=true
+    - node_js: "lts/*"
+      env: POSTTEST=true
+    - node_js: "4"
+      env: COVERAGE=true
+    - node_js: "11.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "11.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.14"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.13"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.12"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "10.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "9.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.14"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.13"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.12"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "8.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "7.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.15"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.14"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.13"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.12"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "6.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.10"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "5.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.8"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "4.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v3.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v3.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v3.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v2.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v2.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v2.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v2.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v2.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.7"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.5"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.4"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.3"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.2"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.1"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "iojs-v1.0"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "0.11"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "0.9"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "0.6"
+      env: TEST=true ALLOW_FAILURE=true
+    - node_js: "0.4"
+      env: TEST=true ALLOW_FAILURE=true
+  allow_failures:
+    - os: osx
+    - env: TEST=true ALLOW_FAILURE=true
+    - env: COVERAGE=true
+    - env: POSTTEST=true
diff --git a/src/node_modules/object-keys/CHANGELOG.md b/src/node_modules/object-keys/CHANGELOG.md
new file mode 100644
index 0000000..b7d92df
--- /dev/null
+++ b/src/node_modules/object-keys/CHANGELOG.md
@@ -0,0 +1,232 @@
+1.1.1 / 2019-04-06
+=================
+  * [Fix] exclude deprecated Firefox keys (#53)
+
+1.1.0 / 2019-02-10
+=================
+  * [New] [Refactor] move full implementation to `implementation` entry point
+  * [Refactor] only evaluate the implementation if `Object.keys` is not present
+  * [Tests] up to `node` `v11.8`, `v10.15`, `v8.15`, `v6.16`
+  * [Tests] remove jscs
+  * [Tests] switch to `npm audit` from `nsp`
+
+1.0.12 / 2018-06-18
+=================
+  * [Fix] avoid accessing `window.applicationCache`, to avoid issues with latest Chrome on HTTP (#46)
+
+1.0.11 / 2016-07-05
+=================
+  * [Fix] exclude keys regarding the style (eg. `pageYOffset`) on `window` to avoid reflow (#32)
+
+1.0.10 / 2016-07-04
+=================
+  * [Fix] exclude `height` and `width` keys on `window` to avoid reflow (#31)
+  * [Fix] In IE 6, `window.external` makes `Object.keys` throw
+  * [Tests] up to `node` `v6.2`, `v5.10`, `v4.4`
+  * [Tests] use pretest/posttest for linting/security
+  * [Dev Deps] update `tape`, `jscs`, `nsp`, `eslint`, `@ljharb/eslint-config`
+  * [Dev Deps] remove unused eccheck script + dep
+
+1.0.9 / 2015-10-19
+=================
+  * [Fix] Blacklist 'frame' property on window (#16, #17)
+  * [Dev Deps] update `jscs`, `eslint`, `@ljharb/eslint-config`
+
+1.0.8 / 2015-10-14
+=================
+  * [Fix] wrap automation equality bug checking in try/catch, per [es5-shim#327](https://github.com/es-shims/es5-shim/issues/327)
+  * [Fix] Blacklist 'window.frameElement' per [es5-shim#322](https://github.com/es-shims/es5-shim/issues/322)
+  * [Docs] Switch from vb.teelaun.ch to versionbadg.es for the npm version badge SVG
+  * [Tests] up to `io.js` `v3.3`, `node` `v4.2`
+  * [Dev Deps] update `eslint`, `tape`, `@ljharb/eslint-config`, `jscs`
+
+1.0.7 / 2015-07-18
+=================
+  * [Fix] A proper fix for 176f03335e90d5c8d0d8125a99f27819c9b9cdad / https://github.com/es-shims/es5-shim/issues/275 that doesn't break dontEnum/constructor fixes in IE 8.
+  * [Fix] Remove deprecation message in Chrome by touching deprecated window properties (#15)
+  * [Tests] Improve test output for automation equality bugfix
+  * [Tests] Test on `io.js` `v2.4`
+
+1.0.6 / 2015-07-09
+=================
+  * [Fix] Use an object lookup rather than ES5's `indexOf` (#14)
+  * [Tests] ES3 browsers don't have `Array.isArray`
+  * [Tests] Fix `no-shadow` rule, as well as an IE 8 bug caused by engine NFE shadowing bugs.
+
+1.0.5 / 2015-07-03
+=================
+  * [Fix] Fix a flabbergasting IE 8 bug where `localStorage.constructor.prototype === localStorage` throws
+  * [Tests] Test up to `io.js` `v2.3`
+  * [Dev Deps] Update `nsp`, `eslint`
+
+1.0.4 / 2015-05-23
+=================
+  * Fix a Safari 5.0 bug with `Object.keys` not working with `arguments`
+  * Test on latest `node` and `io.js`
+  * Update `jscs`, `tape`, `eslint`, `nsp`, `is`, `editorconfig-tools`, `covert`
+
+1.0.3 / 2015-01-06
+=================
+  * Revert "Make `object-keys` more robust against later environment tampering" to maintain ES3 compliance
+
+1.0.2 / 2014-12-28
+=================
+  * Update lots of dev dependencies
+  * Tweaks to README
+  * Make `object-keys` more robust against later environment tampering
+
+1.0.1 / 2014-09-03
+=================
+  * Update URLs and badges in README
+
+1.0.0 / 2014-08-26
+=================
+  * v1.0.0
+
+0.6.1 / 2014-08-25
+=================
+  * v0.6.1
+  * Updating dependencies (tape, covert, is)
+  * Update badges in readme
+  * Use separate var statements
+
+0.6.0 / 2014-04-23
+=================
+  * v0.6.0
+  * Updating dependencies (tape, covert)
+  * Make sure boxed primitives, and arguments objects, work properly in ES3 browsers
+  * Improve test matrix: test all node versions, but only latest two stables are a failure
+  * Remove internal foreach shim.
+
+0.5.1 / 2014-03-09
+=================
+  * 0.5.1
+  * Updating dependencies (tape, covert, is)
+  * Removing forEach from the module (but keeping it in tests)
+
+0.5.0 / 2014-01-30
+=================
+  * 0.5.0
+  * Explicitly returning the shim, instead of returning native Object.keys when present
+  * Adding a changelog.
+  * Cleaning up IIFE wrapping
+  * Testing on node 0.4 through 0.11
+
+0.4.0 / 2013-08-14
+==================
+
+  * v0.4.0
+  * In Chrome 4-10 and Safari 4, typeof (new RegExp) === 'function'
+  * If it's a string, make sure to use charAt instead of brackets.
+  * Only use Function#call if necessary.
+  * Making sure the context tests actually run.
+  * Better function detection
+  * Adding the android browser
+  * Fixing testling files
+  * Updating tape
+  * Removing the "is" dependency.
+  * Making an isArguments shim.
+  * Adding a local forEach shim and tests.
+  * Updating paths.
+  * Moving the shim test.
+  * v0.3.0
+
+0.3.0 / 2013-05-18
+==================
+
+  * README tweak.
+  * Fixing constructor enum issue. Fixes [#5](https://github.com/ljharb/object-keys/issues/5).
+  * Adding a test for [#5](https://github.com/ljharb/object-keys/issues/5)
+  * Updating readme.
+  * Updating dependencies.
+  * Giving credit to lodash.
+  * Make sure that a prototype's constructor property is not enumerable. Fixes [#3](https://github.com/ljharb/object-keys/issues/3).
+  * Adding additional tests to handle arguments objects, and to skip "prototype" in functions. Fixes [#2](https://github.com/ljharb/object-keys/issues/2).
+  * Fixing a typo on this test for [#3](https://github.com/ljharb/object-keys/issues/3).
+  * Adding node 0.10 to travis.
+  * Adding an IE < 9 test per [#3](https://github.com/ljharb/object-keys/issues/3)
+  * Adding an iOS 5 mobile Safari test per [#2](https://github.com/ljharb/object-keys/issues/2)
+  * Moving "indexof" and "is" to be dev dependencies.
+  * Making sure the shim works with functions.
+  * Flattening the tests.
+
+0.2.0 / 2013-05-10
+==================
+
+  * v0.2.0
+  * Object.keys should work with arrays.
+
+0.1.8 / 2013-05-10
+==================
+
+  * v0.1.8
+  * Upgrading dependencies.
+  * Using a simpler check.
+  * Fixing a bug in hasDontEnumBug browsers.
+  * Using the newest tape!
+  * Fixing this error test.
+  * "undefined" is probably a reserved word in ES3.
+  * Better test message.
+
+0.1.7 / 2013-04-17
+==================
+
+  * Upgrading "is" once more.
+  * The key "null" is breaking some browsers.
+
+0.1.6 / 2013-04-17
+==================
+
+  * v0.1.6
+  * Upgrading "is"
+
+0.1.5 / 2013-04-14
+==================
+
+  * Bumping version.
+  * Adding more testling browsers.
+  * Updating "is"
+
+0.1.4 / 2013-04-08
+==================
+
+  * Using "is" instead of "is-extended".
+
+0.1.3 / 2013-04-07
+==================
+
+  * Using "foreach" instead of my own shim.
+  * Removing "tap"; I'll just wait for "tape" to fix its node 0.10 bug.
+
+0.1.2 / 2013-04-03
+==================
+
+  * Adding dependency status; moving links to an index at the bottom.
+  * Upgrading is-extended; version 0.1.2
+  * Adding an npm version badge.
+
+0.1.1 / 2013-04-01
+==================
+
+  * Adding Travis CI.
+  * Bumping the version.
+  * Adding indexOf since IE sucks.
+  * Adding a forEach shim since older browsers don't have Array#forEach.
+  * Upgrading tape - 0.3.2 uses Array#map
+  * Using explicit end instead of plan.
+  * Can't test with Array.isArray in older browsers.
+  * Using is-extended.
+  * Fixing testling files.
+  * JSHint/JSLint-ing.
+  * Removing an unused object.
+  * Using strict mode.
+
+0.1.0 / 2013-03-30
+==================
+
+  * Changing the exports should have meant a higher version bump.
+  * Oops, fixing the repo URL.
+  * Adding more tests.
+  * 0.0.2
+  * Merge branch 'export_one_thing'; closes [#1](https://github.com/ljharb/object-keys/issues/1)
+  * Move shim export to a separate file.
diff --git a/src/node_modules/object-keys/LICENSE b/src/node_modules/object-keys/LICENSE
new file mode 100644
index 0000000..28553fd
--- /dev/null
+++ b/src/node_modules/object-keys/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (C) 2013 Jordan Harband
+
+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.
\ No newline at end of file
diff --git a/src/node_modules/object-keys/README.md b/src/node_modules/object-keys/README.md
new file mode 100644
index 0000000..ed4c277
--- /dev/null
+++ b/src/node_modules/object-keys/README.md
@@ -0,0 +1,76 @@
+#object-keys <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
+
+[![Build Status][travis-svg]][travis-url]
+[![dependency status][deps-svg]][deps-url]
+[![dev dependency status][dev-deps-svg]][dev-deps-url]
+[![License][license-image]][license-url]
+[![Downloads][downloads-image]][downloads-url]
+
+[![npm badge][npm-badge-png]][package-url]
+
+[![browser support][testling-svg]][testling-url]
+
+An Object.keys shim. Invoke its "shim" method to shim Object.keys if it is unavailable.
+
+Most common usage:
+```js
+var keys = Object.keys || require('object-keys');
+```
+
+## Example
+
+```js
+var keys = require('object-keys');
+var assert = require('assert');
+var obj = {
+	a: true,
+	b: true,
+	c: true
+};
+
+assert.deepEqual(keys(obj), ['a', 'b', 'c']);
+```
+
+```js
+var keys = require('object-keys');
+var assert = require('assert');
+/* when Object.keys is not present */
+delete Object.keys;
+var shimmedKeys = keys.shim();
+assert.equal(shimmedKeys, keys);
+assert.deepEqual(Object.keys(obj), keys(obj));
+```
+
+```js
+var keys = require('object-keys');
+var assert = require('assert');
+/* when Object.keys is present */
+var shimmedKeys = keys.shim();
+assert.equal(shimmedKeys, Object.keys);
+assert.deepEqual(Object.keys(obj), keys(obj));
+```
+
+## Source
+Implementation taken directly from [es5-shim][es5-shim-url], with modifications, including from [lodash][lodash-url].
+
+## Tests
+Simply clone the repo, `npm install`, and run `npm test`
+
+[package-url]: https://npmjs.org/package/object-keys
+[npm-version-svg]: http://versionbadg.es/ljharb/object-keys.svg
+[travis-svg]: https://travis-ci.org/ljharb/object-keys.svg
+[travis-url]: https://travis-ci.org/ljharb/object-keys
+[deps-svg]: https://david-dm.org/ljharb/object-keys.svg
+[deps-url]: https://david-dm.org/ljharb/object-keys
+[dev-deps-svg]: https://david-dm.org/ljharb/object-keys/dev-status.svg
+[dev-deps-url]: https://david-dm.org/ljharb/object-keys#info=devDependencies
+[testling-svg]: https://ci.testling.com/ljharb/object-keys.png
+[testling-url]: https://ci.testling.com/ljharb/object-keys
+[es5-shim-url]: https://github.com/es-shims/es5-shim/blob/master/es5-shim.js#L542-589
+[lodash-url]: https://github.com/lodash/lodash
+[npm-badge-png]: https://nodei.co/npm/object-keys.png?downloads=true&stars=true
+[license-image]: http://img.shields.io/npm/l/object-keys.svg
+[license-url]: LICENSE
+[downloads-image]: http://img.shields.io/npm/dm/object-keys.svg
+[downloads-url]: http://npm-stat.com/charts.html?package=object-keys
+
diff --git a/src/node_modules/object-keys/implementation.js b/src/node_modules/object-keys/implementation.js
new file mode 100644
index 0000000..5b32986
--- /dev/null
+++ b/src/node_modules/object-keys/implementation.js
@@ -0,0 +1,122 @@
+'use strict';
+
+var keysShim;
+if (!Object.keys) {
+	// modified from https://github.com/es-shims/es5-shim
+	var has = Object.prototype.hasOwnProperty;
+	var toStr = Object.prototype.toString;
+	var isArgs = require('./isArguments'); // eslint-disable-line global-require
+	var isEnumerable = Object.prototype.propertyIsEnumerable;
+	var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
+	var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
+	var dontEnums = [
+		'toString',
+		'toLocaleString',
+		'valueOf',
+		'hasOwnProperty',
+		'isPrototypeOf',
+		'propertyIsEnumerable',
+		'constructor'
+	];
+	var equalsConstructorPrototype = function (o) {
+		var ctor = o.constructor;
+		return ctor && ctor.prototype === o;
+	};
+	var excludedKeys = {
+		$applicationCache: true,
+		$console: true,
+		$external: true,
+		$frame: true,
+		$frameElement: true,
+		$frames: true,
+		$innerHeight: true,
+		$innerWidth: true,
+		$onmozfullscreenchange: true,
+		$onmozfullscreenerror: true,
+		$outerHeight: true,
+		$outerWidth: true,
+		$pageXOffset: true,
+		$pageYOffset: true,
+		$parent: true,
+		$scrollLeft: true,
+		$scrollTop: true,
+		$scrollX: true,
+		$scrollY: true,
+		$self: true,
+		$webkitIndexedDB: true,
+		$webkitStorageInfo: true,
+		$window: true
+	};
+	var hasAutomationEqualityBug = (function () {
+		/* global window */
+		if (typeof window === 'undefined') { return false; }
+		for (var k in window) {
+			try {
+				if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
+					try {
+						equalsConstructorPrototype(window[k]);
+					} catch (e) {
+						return true;
+					}
+				}
+			} catch (e) {
+				return true;
+			}
+		}
+		return false;
+	}());
+	var equalsConstructorPrototypeIfNotBuggy = function (o) {
+		/* global window */
+		if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
+			return equalsConstructorPrototype(o);
+		}
+		try {
+			return equalsConstructorPrototype(o);
+		} catch (e) {
+			return false;
+		}
+	};
+
+	keysShim = function keys(object) {
+		var isObject = object !== null && typeof object === 'object';
+		var isFunction = toStr.call(object) === '[object Function]';
+		var isArguments = isArgs(object);
+		var isString = isObject && toStr.call(object) === '[object String]';
+		var theKeys = [];
+
+		if (!isObject && !isFunction && !isArguments) {
+			throw new TypeError('Object.keys called on a non-object');
+		}
+
+		var skipProto = hasProtoEnumBug && isFunction;
+		if (isString && object.length > 0 && !has.call(object, 0)) {
+			for (var i = 0; i < object.length; ++i) {
+				theKeys.push(String(i));
+			}
+		}
+
+		if (isArguments && object.length > 0) {
+			for (var j = 0; j < object.length; ++j) {
+				theKeys.push(String(j));
+			}
+		} else {
+			for (var name in object) {
+				if (!(skipProto && name === 'prototype') && has.call(object, name)) {
+					theKeys.push(String(name));
+				}
+			}
+		}
+
+		if (hasDontEnumBug) {
+			var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
+
+			for (var k = 0; k < dontEnums.length; ++k) {
+				if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
+					theKeys.push(dontEnums[k]);
+				}
+			}
+		}
+		return theKeys;
+	};
+}
+module.exports = keysShim;
diff --git a/src/node_modules/object-keys/index.js b/src/node_modules/object-keys/index.js
new file mode 100644
index 0000000..a43807d
--- /dev/null
+++ b/src/node_modules/object-keys/index.js
@@ -0,0 +1,32 @@
+'use strict';
+
+var slice = Array.prototype.slice;
+var isArgs = require('./isArguments');
+
+var origKeys = Object.keys;
+var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');
+
+var originalKeys = Object.keys;
+
+keysShim.shim = function shimObjectKeys() {
+	if (Object.keys) {
+		var keysWorksWithArguments = (function () {
+			// Safari 5.0 bug
+			var args = Object.keys(arguments);
+			return args && args.length === arguments.length;
+		}(1, 2));
+		if (!keysWorksWithArguments) {
+			Object.keys = function keys(object) { // eslint-disable-line func-name-matching
+				if (isArgs(object)) {
+					return originalKeys(slice.call(object));
+				}
+				return originalKeys(object);
+			};
+		}
+	} else {
+		Object.keys = keysShim;
+	}
+	return Object.keys || keysShim;
+};
+
+module.exports = keysShim;
diff --git a/src/node_modules/object-keys/isArguments.js b/src/node_modules/object-keys/isArguments.js
new file mode 100644
index 0000000..f2a2a90
--- /dev/null
+++ b/src/node_modules/object-keys/isArguments.js
@@ -0,0 +1,17 @@
+'use strict';
+
+var toStr = Object.prototype.toString;
+
+module.exports = function isArguments(value) {
+	var str = toStr.call(value);
+	var isArgs = str === '[object Arguments]';
+	if (!isArgs) {
+		isArgs = str !== '[object Array]' &&
+			value !== null &&
+			typeof value === 'object' &&
+			typeof value.length === 'number' &&
+			value.length >= 0 &&
+			toStr.call(value.callee) === '[object Function]';
+	}
+	return isArgs;
+};
diff --git a/src/node_modules/object-keys/package.json b/src/node_modules/object-keys/package.json
new file mode 100644
index 0000000..99ea923
--- /dev/null
+++ b/src/node_modules/object-keys/package.json
@@ -0,0 +1,88 @@
+{
+	"name": "object-keys",
+	"version": "1.1.1",
+	"author": {
+		"name": "Jordan Harband",
+		"email": "ljharb@gmail.com",
+		"url": "http://ljharb.codes"
+	},
+	"contributors": [
+		{
+			"name": "Jordan Harband",
+			"email": "ljharb@gmail.com",
+			"url": "http://ljharb.codes"
+		},
+		{
+			"name": "Raynos",
+			"email": "raynos2@gmail.com"
+		},
+		{
+			"name": "Nathan Rajlich",
+			"email": "nathan@tootallnate.net"
+		},
+		{
+			"name": "Ivan Starkov",
+			"email": "istarkov@gmail.com"
+		},
+		{
+			"name": "Gary Katsevman",
+			"email": "git@gkatsev.com"
+		}
+	],
+	"description": "An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim",
+	"license": "MIT",
+	"main": "index.js",
+	"scripts": {
+		"pretest": "npm run --silent lint",
+		"test": "npm run --silent tests-only",
+		"posttest": "npm run --silent audit",
+		"tests-only": "node test/index.js",
+		"coverage": "covert test/*.js",
+		"coverage-quiet": "covert test/*.js --quiet",
+		"lint": "eslint .",
+		"preaudit": "npm install --package-lock --package-lock-only",
+		"audit": "npm audit",
+		"postaudit": "rm package-lock.json"
+	},
+	"repository": {
+		"type": "git",
+		"url": "git://github.com/ljharb/object-keys.git"
+	},
+	"keywords": [
+		"Object.keys",
+		"keys",
+		"ES5",
+		"shim"
+	],
+	"dependencies": {},
+	"devDependencies": {
+		"@ljharb/eslint-config": "^13.1.1",
+		"covert": "^1.1.1",
+		"eslint": "^5.13.0",
+		"foreach": "^2.0.5",
+		"indexof": "^0.0.1",
+		"is": "^3.3.0",
+		"tape": "^4.9.2"
+	},
+	"testling": {
+		"files": "test/index.js",
+		"browsers": [
+			"iexplore/6.0..latest",
+			"firefox/3.0..6.0",
+			"firefox/15.0..latest",
+			"firefox/nightly",
+			"chrome/4.0..10.0",
+			"chrome/20.0..latest",
+			"chrome/canary",
+			"opera/10.0..latest",
+			"opera/next",
+			"safari/4.0..latest",
+			"ipad/6.0..latest",
+			"iphone/6.0..latest",
+			"android-browser/4.2"
+		]
+	},
+	"engines": {
+		"node": ">= 0.4"
+	}
+}
diff --git a/src/node_modules/object-keys/test/index.js b/src/node_modules/object-keys/test/index.js
new file mode 100644
index 0000000..5402465
--- /dev/null
+++ b/src/node_modules/object-keys/test/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+require('./isArguments');
+
+require('./shim');