diff --git a/dangerfile.js b/dangerfile.js
new file mode 100644
index 0000000000000..33c580d2d6af4
--- /dev/null
+++ b/dangerfile.js
@@ -0,0 +1,151 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+const {markdown, danger} = require('danger');
+const fetch = require('node-fetch');
+
+const {generateResultsArray} = require('./scripts/rollup/stats');
+const {readFileSync} = require('fs');
+
+const currentBuildResults = JSON.parse(
+  readFileSync('./scripts/rollup/results.json')
+);
+
+/**
+ * Generates a Markdown table
+ * @param {string[]} headers
+ * @param {string[][]} body
+ */
+function generateMDTable(headers, body) {
+  const tableHeaders = [
+    headers.join(' | '),
+    headers.map(() => ' --- ').join(' | '),
+  ];
+
+  const tablebody = body.map(r => r.join(' | '));
+  return tableHeaders.join('\n') + '\n' + tablebody.join('\n');
+}
+
+/**
+ * Generates a user-readable string from a percentage change
+ * @param {string[]} headers
+ */
+function emojiPercent(change) {
+  if (change > 0) {
+    return `:small_red_triangle:+${change}%`;
+  } else if (change <= 0) {
+    return `${change}%`;
+  }
+}
+
+// Grab the results.json before we ran CI via the GH API
+// const baseMerge = danger.github.pr.base.sha
+const parentOfOldestCommit = danger.git.commits[0].parents[0];
+const commitURL = sha =>
+  `http://react.zpao.com/builds/master/_commits/${sha}/results.json`;
+
+fetch(commitURL(parentOfOldestCommit)).then(async response => {
+  const previousBuildResults = await response.json();
+  const results = generateResultsArray(
+    currentBuildResults,
+    previousBuildResults
+  );
+
+  const percentToWarrentShowing = 1;
+  const packagesToShow = results
+    .filter(
+      r =>
+        Math.abs(r.prevFileSizeChange) > percentToWarrentShowing ||
+        Math.abs(r.prevGzipSizeChange) > percentToWarrentShowing
+    )
+    .map(r => r.packageName);
+
+  if (packagesToShow.length) {
+    let allTables = [];
+
+    // Highlight React and React DOM changes inline
+    // e.g. react: `react.production.min.js`: -3%, `react.development.js`: +4%
+
+    if (packagesToShow.includes('react')) {
+      const reactProd = results.find(
+        r => r.bundleType === 'UMD_PROD' && r.packageName === 'react'
+      );
+      if (
+        reactProd.prevFileSizeChange !== 0 ||
+        reactProd.prevGzipSizeChange !== 0
+      ) {
+        const changeSize = emojiPercent(reactProd.prevFileSizeChange);
+        const changeGzip = emojiPercent(reactProd.prevGzipSizeChange);
+        markdown(`React: size: ${changeSize}, gzip: ${changeGzip}`);
+      }
+    }
+
+    if (packagesToShow.includes('react-dom')) {
+      const reactDOMProd = results.find(
+        r => r.bundleType === 'UMD_PROD' && r.packageName === 'react-dom'
+      );
+      if (
+        reactDOMProd.prevFileSizeChange !== 0 ||
+        reactDOMProd.prevGzipSizeChange !== 0
+      ) {
+        const changeSize = emojiPercent(reactDOMProd.prevFileSizeChange);
+        const changeGzip = emojiPercent(reactDOMProd.prevGzipSizeChange);
+        markdown(`ReactDOM: size: ${changeSize}, gzip: ${changeGzip}`);
+      }
+    }
+
+    // Show a hidden summary table for all diffs
+
+    // eslint-disable-next-line no-var
+    for (var name of new Set(packagesToShow)) {
+      const thisBundleResults = results.filter(r => r.packageName === name);
+      const changedFiles = thisBundleResults.filter(
+        r => r.prevGzipSizeChange !== 0 || r.prevGzipSizeChange !== 0
+      );
+
+      const mdHeaders = [
+        'File',
+        'Filesize Diff',
+        'Gzip Diff',
+        'Prev Size',
+        'Current Size',
+        'Prev Gzip',
+        'Current Gzip',
+        'ENV',
+      ];
+
+      const mdRows = changedFiles.map(r => [
+        r.filename,
+        emojiPercent(r.prevFileSizeChange),
+        emojiPercent(r.prevGzipSizeChange),
+        r.prevSize,
+        r.prevFileSize,
+        r.prevGzip,
+        r.prevGzipSize,
+        r.bundleType,
+      ]);
+
+      allTables.push(`\n## ${name}`);
+      allTables.push(generateMDTable(mdHeaders, mdRows));
+    }
+
+    const summary = `
+<details>
+<summary>Details of bundled changes.</summary>
+
+<p>Comparing: ${parentOfOldestCommit}...${danger.github.pr.head.sha}</p>
+
+
+${allTables.join('\n')}
+
+</details>
+`;
+    markdown(summary);
+  }
+});
diff --git a/package.json b/package.json
index ce2dc2a3f77a0..64afd817df624 100644
--- a/package.json
+++ b/package.json
@@ -47,6 +47,7 @@
     "coveralls": "^2.11.6",
     "create-react-class": "^15.6.2",
     "cross-env": "^5.1.1",
+    "danger": "^3.0.4",
     "del": "^2.0.2",
     "derequire": "^2.0.3",
     "escape-string-regexp": "^1.0.5",
diff --git a/scripts/circleci/test_entry_point.sh b/scripts/circleci/test_entry_point.sh
index d7f7a1b28a31a..249b09142c51d 100755
--- a/scripts/circleci/test_entry_point.sh
+++ b/scripts/circleci/test_entry_point.sh
@@ -25,6 +25,7 @@ if [ $((2 % CIRCLE_NODE_TOTAL)) -eq "$CIRCLE_NODE_INDEX" ]; then
   COMMANDS_TO_RUN+=('./scripts/circleci/build.sh')
   COMMANDS_TO_RUN+=('yarn test-build --maxWorkers=2')
   COMMANDS_TO_RUN+=('yarn test-build-prod --maxWorkers=2')
+  COMMANDS_TO_RUN+=('node ./scripts/tasks/danger')
   COMMANDS_TO_RUN+=('./scripts/circleci/upload_build.sh')
 fi
 
diff --git a/scripts/rollup/results.json b/scripts/rollup/results.json
index 100d02955ffb5..63208f49a4ea4 100644
--- a/scripts/rollup/results.json
+++ b/scripts/rollup/results.json
@@ -400,4 +400,4 @@
       "gzip": 525
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/scripts/rollup/stats.js b/scripts/rollup/stats.js
index fb262bde59613..7cf78dbc69ae8 100644
--- a/scripts/rollup/stats.js
+++ b/scripts/rollup/stats.js
@@ -21,8 +21,10 @@ function saveResults() {
 }
 
 function percentChange(prev, current) {
-  const change = Math.floor((current - prev) / prev * 100);
+  return Math.floor((current - prev) / prev * 100);
+}
 
+function percentChangeString(change) {
   if (change > 0) {
     return chalk.red.bold(`+${change} %`);
   } else if (change <= 0) {
@@ -30,51 +32,75 @@ function percentChange(prev, current) {
   }
 }
 
+const resultsHeaders = [
+  'Bundle',
+  'Prev Size',
+  'Current Size',
+  'Diff',
+  'Prev Gzip',
+  'Current Gzip',
+  'Diff',
+];
+
+function generateResultsArray(current, prevResults) {
+  return current.bundleSizes
+    .map(result => {
+      const prev = prevResults.bundleSizes.filter(
+        res =>
+          res.filename === result.filename &&
+          res.bundleType === result.bundleType
+      )[0];
+      if (result === prev) {
+        // We didn't rebuild this bundle.
+        return;
+      }
+
+      const size = result.size;
+      const gzip = result.gzip;
+      let prevSize = prev ? prev.size : 0;
+      let prevGzip = prev ? prev.gzip : 0;
+
+      return {
+        filename: result.filename,
+        bundleType: result.bundleType,
+        packageName: result.packageName,
+        prevSize: filesize(prevSize),
+        prevFileSize: filesize(size),
+        prevFileSizeChange: percentChange(prevSize, size),
+        prevGzip: filesize(prevGzip),
+        prevGzipSize: filesize(gzip),
+        prevGzipSizeChange: percentChange(prevGzip, gzip),
+      };
+      // Strip any nulls
+    })
+    .filter(f => f);
+}
+
 function printResults() {
   const table = new Table({
-    head: [
-      chalk.gray.yellow('Bundle'),
-      chalk.gray.yellow('Prev Size'),
-      chalk.gray.yellow('Current Size'),
-      chalk.gray.yellow('Diff'),
-      chalk.gray.yellow('Prev Gzip'),
-      chalk.gray.yellow('Current Gzip'),
-      chalk.gray.yellow('Diff'),
-    ],
+    head: resultsHeaders.map(chalk.gray.yellow),
   });
-  currentBuildResults.bundleSizes.forEach(result => {
-    const matches = prevBuildResults.bundleSizes.filter(
-      ({filename, bundleType}) =>
-        filename === result.filename && bundleType === result.bundleType
-    );
-    if (matches.length > 1) {
-      throw new Error(`Ambiguous bundle size record for: ${result.filename}`);
-    }
-    const prev = matches[0];
-    if (result === prev) {
-      // We didn't rebuild this bundle.
-      return;
-    }
 
-    const size = result.size;
-    const gzip = result.gzip;
-    let prevSize = prev ? prev.size : 0;
-    let prevGzip = prev ? prev.gzip : 0;
+  const results = generateResultsArray(currentBuildResults, prevBuildResults);
+  results.forEach(result => {
     table.push([
-      chalk.white.bold(`${result.filename} (${result.bundleType})`),
-      chalk.gray.bold(filesize(prevSize)),
-      chalk.white.bold(filesize(size)),
-      percentChange(prevSize, size),
-      chalk.gray.bold(filesize(prevGzip)),
-      chalk.white.bold(filesize(gzip)),
-      percentChange(prevGzip, gzip),
+      chalk.white.bold(`${result.filename}  (${result.bundleType})`),
+      chalk.gray.bold(result.prevSize),
+      chalk.white.bold(result.prevFileSize),
+      percentChangeString(result.prevFileSizeChange),
+      chalk.gray.bold(result.prevGzip),
+      chalk.white.bold(result.prevGzipSize),
+      percentChangeString(result.prevGzipSizeChange),
     ]);
   });
+
   return table.toString();
 }
 
 module.exports = {
+  currentBuildResults,
+  generateResultsArray,
   printResults,
   saveResults,
-  currentBuildResults,
+  resultsHeaders,
 };
diff --git a/scripts/tasks/danger.js b/scripts/tasks/danger.js
new file mode 100644
index 0000000000000..8198d0c22bc40
--- /dev/null
+++ b/scripts/tasks/danger.js
@@ -0,0 +1,32 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+const path = require('path');
+const spawn = require('child_process').spawn;
+
+const extension = process.platform === 'win32' ? '.cmd' : '';
+
+// This came from React Native's circle.yml
+const token = 'e622517d9f1136ea8900' + '07c6373666312cdfaa69';
+spawn(path.join('node_modules', '.bin', 'danger-ci' + extension), [], {
+  // Allow colors to pass through
+  stdio: 'inherit',
+  env: {
+    ...process.env,
+    DANGER_GITHUB_API_TOKEN: token,
+  },
+}).on('close', function(code) {
+  if (code !== 0) {
+    console.error('Danger failed');
+  } else {
+    console.log('Danger passed');
+  }
+
+  process.exit(code);
+});
diff --git a/yarn.lock b/yarn.lock
index 0047e02f79b20..dea59c7a14167 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-"@babel/code-frame@7.0.0-beta.36", "@babel/code-frame@^7.0.0-beta.35":
+"@babel/code-frame@7.0.0-beta.36":
   version "7.0.0-beta.36"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.0.0-beta.36.tgz#2349d7ec04b3a06945ae173280ef8579b63728e4"
   dependencies:
@@ -55,8 +55,8 @@
     to-fast-properties "^2.0.0"
 
 "@types/node@*":
-  version "8.5.2"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.5.2.tgz#83b8103fa9a2c2e83d78f701a9aa7c9539739aa5"
+  version "8.5.1"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-8.5.1.tgz#4ec3020bcdfe2abffeef9ba3fbf26fca097514b5"
 
 JSONStream@^1.0.3:
   version "1.3.1"
@@ -73,6 +73,12 @@ abbrev@1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.0.tgz#d0554c2256636e2f56e7c2e5ad183f859428d81f"
 
+acorn-globals@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-3.1.0.tgz#fd8270f71fbb4996b004fa880ee5d46573a731bf"
+  dependencies:
+    acorn "^4.0.4"
+
 acorn-globals@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/acorn-globals/-/acorn-globals-4.1.0.tgz#ab716025dbe17c54d3ef81d32ece2b2d99fe2538"
@@ -93,7 +99,7 @@ acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
-acorn@^4.0.3:
+acorn@^4.0.3, acorn@^4.0.4:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.11.tgz#edcda3bd937e7556410d42ed5860f67399c794c0"
 
@@ -101,10 +107,20 @@ acorn@^5.0.0, acorn@^5.1.2:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.3.0.tgz#7446d39459c54fb49a80e6ee6478149b940ec822"
 
+acorn@^5.0.1:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.0.3.tgz#c460df08491463f028ccb82eab3730bf01087b3d"
+
 acorn@^5.2.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.2.1.tgz#317ac7821826c22c702d66189ab8359675f135d7"
 
+agent-base@^4.1.0:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.1.2.tgz#80fa6cde440f4dcf9af2617cf246099b5d99f0c8"
+  dependencies:
+    es6-promisify "^5.0.0"
+
 ajv-keywords@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
@@ -531,6 +547,13 @@ babel-helpers@^6.24.1:
     babel-runtime "^6.22.0"
     babel-template "^6.24.1"
 
+babel-jest@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-21.3.0-beta.4.tgz#43d3975be81fb029d2d675d913803c123267309d"
+  dependencies:
+    babel-plugin-istanbul "^4.1.5"
+    babel-preset-jest "21.3.0-beta.4"
+
 babel-jest@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/babel-jest/-/babel-jest-22.0.6.tgz#807a2a5f5fad7789c57174a955cd14b11045299f"
@@ -580,6 +603,10 @@ babel-plugin-istanbul@^4.1.5:
     istanbul-lib-instrument "^1.7.5"
     test-exclude "^4.1.1"
 
+babel-plugin-jest-hoist@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-21.3.0-beta.4.tgz#a1283b7e556c3cf236604c17e0f18aaa9cf3d79a"
+
 babel-plugin-jest-hoist@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/babel-plugin-jest-hoist/-/babel-plugin-jest-hoist-22.0.6.tgz#551269ded350a15d6585da35d16d449df30d66c4"
@@ -868,6 +895,13 @@ babel-preset-flow@^6.23.0:
   dependencies:
     babel-plugin-transform-flow-strip-types "^6.22.0"
 
+babel-preset-jest@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-21.3.0-beta.4.tgz#d4f797e00a23c0a027a42341684702888d90789a"
+  dependencies:
+    babel-plugin-jest-hoist "21.3.0-beta.4"
+    babel-plugin-syntax-object-rest-spread "^6.13.0"
+
 babel-preset-jest@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/babel-preset-jest/-/babel-preset-jest-22.0.6.tgz#d13202533db9495c98663044d9f51b273d3984c8"
@@ -1178,7 +1212,7 @@ chalk@*, chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0, chalk@^2.1.0:
+chalk@^2.0.0, chalk@^2.1.0, chalk@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.0.tgz#b5ea48efc9c1793dccc9b4767c93914d3f2d52ba"
   dependencies:
@@ -1257,14 +1291,6 @@ cliui@^3.2.0:
     strip-ansi "^3.0.1"
     wrap-ansi "^2.0.0"
 
-cliui@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.0.0.tgz#743d4650e05f36d1ed2575b59638d87322bfbbcc"
-  dependencies:
-    string-width "^2.1.1"
-    strip-ansi "^4.0.0"
-    wrap-ansi "^2.0.0"
-
 clone-buffer@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/clone-buffer/-/clone-buffer-1.0.0.tgz#e3e25b207ac4e701af721e2cb5a16792cac3dc58"
@@ -1338,6 +1364,10 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
+commander@^2.12.2:
+  version "2.12.2"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.2.tgz#0f5946c427ed9ec0d91a46bb9def53e54650e555"
+
 commander@^2.5.0, commander@^2.6.0, commander@^2.8.1, commander@^2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
@@ -1485,6 +1515,38 @@ d@1:
   dependencies:
     es5-ext "^0.10.9"
 
+danger@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/danger/-/danger-3.0.4.tgz#df8bb80ec9e220f68718e0c7ce83efb7fe5b5367"
+  dependencies:
+    babel-polyfill "^6.23.0"
+    chalk "^2.3.0"
+    commander "^2.12.2"
+    debug "^3.1.0"
+    get-stdin "^5.0.1"
+    github "^13.0.1"
+    hyperlinker "^1.0.0"
+    jsome "^2.3.25"
+    json5 "^0.5.1"
+    jsonpointer "^4.0.1"
+    lodash.find "^4.6.0"
+    lodash.includes "^4.3.0"
+    lodash.isobject "^3.0.2"
+    lodash.keys "^4.0.8"
+    node-cleanup "^2.1.2"
+    node-fetch "^1.7.3"
+    parse-diff "^0.4.0"
+    parse-git-config "^1.1.1"
+    parse-github-url "^1.0.2"
+    parse-link-header "^1.0.1"
+    pinpoint "^1.1.0"
+    readline-sync "^1.4.7"
+    require-from-string "^2.0.1"
+    rfc6902 "^2.2.2"
+    supports-hyperlinks "^1.0.1"
+    vm2 patriksimek/vm2#custom_files
+    voca "^1.3.1"
+
 dashdash@^1.12.0:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
@@ -1637,6 +1699,10 @@ domexception@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/domexception/-/domexception-1.0.0.tgz#81fe5df81b3f057052cde3a9fa9bf536a85b9ab0"
 
+dotenv@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-4.0.0.tgz#864ef1379aced55ce6f95debecdce179f7a0cd1d"
+
 duplexer2@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/duplexer2/-/duplexer2-0.0.2.tgz#c614dcf67e2fb14995a91711e5a617e8a60a31db"
@@ -1684,6 +1750,12 @@ end-of-stream@^1.0.0, end-of-stream@^1.1.0:
   dependencies:
     once "^1.4.0"
 
+"errno@>=0.1.1 <0.2.0-0":
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.4.tgz#b896e23a9e5e8ba33871fc996abd3635fc9a1c7d"
+  dependencies:
+    prr "~0.0.0"
+
 error-ex@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
@@ -1743,6 +1815,16 @@ es6-map@^0.1.3:
     es6-symbol "~3.1.1"
     event-emitter "~0.3.5"
 
+es6-promise@^4.0.3:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.2.tgz#f722d7769af88bd33bc13ec6605e1f92966b82d9"
+
+es6-promisify@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
+  dependencies:
+    es6-promise "^4.0.3"
+
 es6-set@~0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/es6-set/-/es6-set-0.1.5.tgz#d2b3ec5d4d800ced818db538d28974db0a73ccb1"
@@ -1773,6 +1855,17 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+escodegen@^1.6.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
+  dependencies:
+    esprima "^2.7.1"
+    estraverse "^1.9.1"
+    esutils "^2.0.2"
+    optionator "^0.8.1"
+  optionalDependencies:
+    source-map "~0.2.0"
+
 escodegen@^1.9.0:
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.9.0.tgz#9811a2f265dc1cd3894420ee3717064b632b8852"
@@ -1889,7 +1982,7 @@ esprima-fb@~15001.1001.0-dev-harmony-fb:
   version "15001.1001.0-dev-harmony-fb"
   resolved "https://registry.yarnpkg.com/esprima-fb/-/esprima-fb-15001.1001.0-dev-harmony-fb.tgz#43beb57ec26e8cf237d3dd8b33e42533577f2659"
 
-esprima@^2.6.0:
+esprima@^2.6.0, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
@@ -1897,10 +1990,6 @@ esprima@^3.1.1, esprima@^3.1.3, esprima@~3.1.0:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
 
-esprima@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
-
 esquery@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
@@ -1914,6 +2003,10 @@ esrecurse@^4.1.0:
     estraverse "~4.1.0"
     object-assign "^4.0.1"
 
+estraverse@^1.9.1:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
+
 estraverse@^4.0.0, estraverse@^4.1.1, estraverse@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
@@ -1981,6 +2074,17 @@ expand-tilde@^1.2.2:
   dependencies:
     os-homedir "^1.0.1"
 
+expect@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/expect/-/expect-21.3.0-beta.4.tgz#e1243ad493fb9dec41793ab0ffd08a3a81eb9cb4"
+  dependencies:
+    ansi-styles "^3.2.0"
+    jest-diff "21.3.0-beta.4"
+    jest-get-type "21.3.0-beta.4"
+    jest-matcher-utils "21.3.0-beta.4"
+    jest-message-util "21.3.0-beta.4"
+    jest-regex-util "^21.2.0"
+
 expect@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/expect/-/expect-22.0.6.tgz#69e1761ecb5ba354513e546e6187beda79e18078"
@@ -2286,10 +2390,6 @@ function-bind@^1.0.2, function-bind@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.0.tgz#16176714c801798e4e8f2cf7f7529467bb4a5771"
 
-function-bind@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
-
 functional-red-black-tree@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
@@ -2325,6 +2425,10 @@ get-stdin@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"
 
+get-stdin@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-5.0.1.tgz#122e161591e21ff4c52530305693f20e6393a398"
+
 get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
@@ -2339,6 +2443,25 @@ git-branch@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/git-branch/-/git-branch-0.3.0.tgz#cae53f599054d2bd4773e164550f54cc5fe53d2c"
 
+git-config-path@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/git-config-path/-/git-config-path-1.0.1.tgz#6d33f7ed63db0d0e118131503bab3aca47d54664"
+  dependencies:
+    extend-shallow "^2.0.1"
+    fs-exists-sync "^0.1.0"
+    homedir-polyfill "^1.0.0"
+
+github@^13.0.1:
+  version "13.0.1"
+  resolved "https://registry.yarnpkg.com/github/-/github-13.0.1.tgz#4ccf4a41df662f92367e77a474674eabb1b6c78d"
+  dependencies:
+    debug "^3.1.0"
+    dotenv "^4.0.0"
+    https-proxy-agent "^2.1.0"
+    lodash "^4.17.4"
+    proxy-from-env "^1.0.0"
+    url-template "^2.0.8"
+
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
@@ -2666,6 +2789,17 @@ http-signature@~1.2.0:
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
+https-proxy-agent@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.1.1.tgz#a7ce4382a1ba8266ee848578778122d491260fd9"
+  dependencies:
+    agent-base "^4.1.0"
+    debug "^3.1.0"
+
+hyperlinker@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/hyperlinker/-/hyperlinker-1.0.0.tgz#23dc9e38a206b208ee49bc2d6c8ef47027df0c0e"
+
 iconv-lite@0.4.13:
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
@@ -2693,7 +2827,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
+inherits@2, inherits@^2.0.1, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
@@ -2892,7 +3026,7 @@ is-property@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
 
-is-regex@^1.0.3, is-regex@^1.0.4:
+is-regex@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
   dependencies:
@@ -3048,12 +3182,53 @@ jasmine-check@^1.0.0-rc.0:
   dependencies:
     testcheck "^1.0.0-rc"
 
+jest-changed-files@^21.2.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-changed-files/-/jest-changed-files-21.2.0.tgz#5dbeecad42f5d88b482334902ce1cba6d9798d29"
+  dependencies:
+    throat "^4.0.0"
+
 jest-changed-files@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-changed-files/-/jest-changed-files-22.0.6.tgz#fca38cf4c89920c66aad1707e91d25bbea238875"
   dependencies:
     throat "^4.0.0"
 
+jest-cli@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-cli/-/jest-cli-21.3.0-beta.4.tgz#50a1c2773cfeff68dbb1fe454a3f259ad5850fa6"
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.1"
+    glob "^7.1.2"
+    graceful-fs "^4.1.11"
+    is-ci "^1.0.10"
+    istanbul-api "^1.1.14"
+    istanbul-lib-coverage "^1.1.1"
+    istanbul-lib-instrument "^1.8.0"
+    istanbul-lib-source-maps "^1.2.1"
+    jest-changed-files "^21.2.0"
+    jest-config "21.3.0-beta.4"
+    jest-environment-jsdom "21.3.0-beta.4"
+    jest-haste-map "21.3.0-beta.4"
+    jest-message-util "21.3.0-beta.4"
+    jest-regex-util "^21.2.0"
+    jest-resolve-dependencies "^21.2.0"
+    jest-runner "21.3.0-beta.4"
+    jest-runtime "21.3.0-beta.4"
+    jest-snapshot "21.3.0-beta.4"
+    jest-util "21.3.0-beta.4"
+    micromatch "^2.3.11"
+    node-notifier "^5.1.2"
+    pify "^3.0.0"
+    rimraf "^2.5.4"
+    slash "^1.0.0"
+    string-length "^2.0.0"
+    strip-ansi "^4.0.0"
+    which "^1.2.12"
+    worker-farm "^1.3.1"
+    yargs "^9.0.0"
+
 jest-cli@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-cli/-/jest-cli-22.0.6.tgz#a2f1e5e094c42b29d22815463ae57f4d07e292ac"
@@ -3090,6 +3265,22 @@ jest-cli@^22.0.6:
     which "^1.2.12"
     yargs "^10.0.3"
 
+jest-config@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-21.3.0-beta.4.tgz#03c936c605c5ec11bbd42aa9d2715d4d96cb11ee"
+  dependencies:
+    chalk "^2.0.1"
+    glob "^7.1.1"
+    jest-environment-jsdom "21.3.0-beta.4"
+    jest-environment-node "21.3.0-beta.4"
+    jest-get-type "21.3.0-beta.4"
+    jest-jasmine2 "21.3.0-beta.4"
+    jest-regex-util "^21.2.0"
+    jest-resolve "21.3.0-beta.4"
+    jest-util "21.3.0-beta.4"
+    jest-validate "21.3.0-beta.4"
+    pretty-format "21.3.0-beta.4"
+
 jest-config@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-config/-/jest-config-22.0.6.tgz#8af116784df189b98ed6fd6c307bce4181f7f012"
@@ -3106,6 +3297,15 @@ jest-config@^22.0.6:
     jest-validate "^22.0.6"
     pretty-format "^22.0.6"
 
+jest-diff@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-21.3.0-beta.4.tgz#75e795e83f6c3368720c2ddd1f0cbed1543c4139"
+  dependencies:
+    chalk "^2.0.1"
+    diff "^3.2.0"
+    jest-get-type "21.3.0-beta.4"
+    pretty-format "21.3.0-beta.4"
+
 jest-diff@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-diff/-/jest-diff-22.0.6.tgz#38c07187324564ecf6389a980a2f0e86e7e79890"
@@ -3115,12 +3315,26 @@ jest-diff@^22.0.6:
     jest-get-type "^22.0.6"
     pretty-format "^22.0.6"
 
+jest-docblock@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-21.3.0-beta.4.tgz#11c3121cccc39d826d484e0951cb2faad1fe1ebd"
+  dependencies:
+    detect-newline "^2.1.0"
+
 jest-docblock@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-22.0.6.tgz#f187fb2c67eec0999e569d563092125283084f9e"
   dependencies:
     detect-newline "^2.1.0"
 
+jest-environment-jsdom@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-21.3.0-beta.4.tgz#aa2831f1ac6b2c88a7ec965990517960d5828da1"
+  dependencies:
+    jest-mock "21.3.0-beta.4"
+    jest-util "21.3.0-beta.4"
+    jsdom "^9.12.0"
+
 jest-environment-jsdom@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-environment-jsdom/-/jest-environment-jsdom-22.0.6.tgz#243f3fa7167a1f293410aec8d3eb12ab8de4f748"
@@ -3129,6 +3343,13 @@ jest-environment-jsdom@^22.0.6:
     jest-util "^22.0.6"
     jsdom "^11.5.1"
 
+jest-environment-node@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-21.3.0-beta.4.tgz#d4d620ee495d9af84edc157466ff962596e783ab"
+  dependencies:
+    jest-mock "21.3.0-beta.4"
+    jest-util "21.3.0-beta.4"
+
 jest-environment-node@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-environment-node/-/jest-environment-node-22.0.6.tgz#4f34ac4c0591297aceefa6a93421360bd56e5a74"
@@ -3136,10 +3357,25 @@ jest-environment-node@^22.0.6:
     jest-mock "^22.0.6"
     jest-util "^22.0.6"
 
+jest-get-type@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-21.3.0-beta.4.tgz#248b16f9b8fe2887a0baa35b31905d73d66e56e0"
+
 jest-get-type@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.0.6.tgz#301fbc0760779fdbad37b6e3239a3c1811aa75cb"
 
+jest-haste-map@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-haste-map/-/jest-haste-map-21.3.0-beta.4.tgz#dd8736c40c6db933e16f8f402a45fec859a310f5"
+  dependencies:
+    fb-watchman "^2.0.0"
+    graceful-fs "^4.1.11"
+    jest-docblock "21.3.0-beta.4"
+    micromatch "^2.3.11"
+    sane "^2.0.0"
+    worker-farm "^1.3.1"
+
 jest-haste-map@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-haste-map/-/jest-haste-map-22.0.6.tgz#198d665f65e1c484fef106a3c970c5b47903647e"
@@ -3151,6 +3387,20 @@ jest-haste-map@^22.0.6:
     micromatch "^2.3.11"
     sane "^2.0.0"
 
+jest-jasmine2@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-21.3.0-beta.4.tgz#da0f065ce48c8eaaec1de6c1074ad05cc5a9f96f"
+  dependencies:
+    chalk "^2.0.1"
+    expect "21.3.0-beta.4"
+    graceful-fs "^4.1.11"
+    jest-diff "21.3.0-beta.4"
+    jest-matcher-utils "21.3.0-beta.4"
+    jest-message-util "21.3.0-beta.4"
+    jest-snapshot "21.3.0-beta.4"
+    p-cancelable "^0.3.0"
+    source-map-support "^0.5.0"
+
 jest-jasmine2@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-jasmine2/-/jest-jasmine2-22.0.6.tgz#db9eae709978a8d67a52f7b90d74cab7301107f5"
@@ -3173,6 +3423,14 @@ jest-leak-detector@^22.0.6:
   dependencies:
     pretty-format "^22.0.6"
 
+jest-matcher-utils@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-21.3.0-beta.4.tgz#a83ad12d284c4c3a4db87ba5830f84a16b9a4a91"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "21.3.0-beta.4"
+    pretty-format "21.3.0-beta.4"
+
 jest-matcher-utils@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-matcher-utils/-/jest-matcher-utils-22.0.6.tgz#55675242b2af1de913f44e00aa4d68a38d349b07"
@@ -3181,6 +3439,15 @@ jest-matcher-utils@^22.0.6:
     jest-get-type "^22.0.6"
     pretty-format "^22.0.6"
 
+jest-message-util@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-21.3.0-beta.4.tgz#018dd79f8d7b1a4bbbd9f5b3d59354d14ac9641f"
+  dependencies:
+    chalk "^2.0.1"
+    micromatch "^2.3.11"
+    slash "^1.0.0"
+    stack-utils "^1.0.1"
+
 jest-message-util@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-22.0.6.tgz#2b30edce5131a9358f529ad66ff84835ba4ed457"
@@ -3191,20 +3458,41 @@ jest-message-util@^22.0.6:
     slash "^1.0.0"
     stack-utils "^1.0.1"
 
+jest-mock@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-21.3.0-beta.4.tgz#f318168c781a340c2a75fbb3cc40559670531ddd"
+
 jest-mock@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-22.0.6.tgz#0d1f51ec2bf1e72cd58e79cb76f587e6397306ec"
 
+jest-regex-util@^21.2.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-21.2.0.tgz#1b1e33e63143babc3e0f2e6c9b5ba1eb34b2d530"
+
 jest-regex-util@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-regex-util/-/jest-regex-util-22.0.6.tgz#cd01d33c5993340f5d61be09b270773787a41d88"
 
+jest-resolve-dependencies@^21.2.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-resolve-dependencies/-/jest-resolve-dependencies-21.2.0.tgz#9e231e371e1a736a1ad4e4b9a843bc72bfe03d09"
+  dependencies:
+    jest-regex-util "^21.2.0"
+
 jest-resolve-dependencies@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-resolve-dependencies/-/jest-resolve-dependencies-22.0.6.tgz#dd976f0a9c2874d32edf4876b0a965cef48d479b"
   dependencies:
     jest-regex-util "^22.0.6"
 
+jest-resolve@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-21.3.0-beta.4.tgz#66771415f4be5363b846a6b00599c0e9b01dc726"
+  dependencies:
+    browser-resolve "^1.11.2"
+    chalk "^2.0.1"
+
 jest-resolve@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-resolve/-/jest-resolve-22.0.6.tgz#29d7aa425adb9aae7aa5ae157483dffba724e52b"
@@ -3212,6 +3500,21 @@ jest-resolve@^22.0.6:
     browser-resolve "^1.11.2"
     chalk "^2.0.1"
 
+jest-runner@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-runner/-/jest-runner-21.3.0-beta.4.tgz#a52680a5aff6f1e160c6f520d86482224905d5fa"
+  dependencies:
+    jest-config "21.3.0-beta.4"
+    jest-docblock "21.3.0-beta.4"
+    jest-haste-map "21.3.0-beta.4"
+    jest-jasmine2 "21.3.0-beta.4"
+    jest-message-util "21.3.0-beta.4"
+    jest-runtime "21.3.0-beta.4"
+    jest-util "21.3.0-beta.4"
+    pify "^3.0.0"
+    throat "^4.0.0"
+    worker-farm "^1.3.1"
+
 jest-runner@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-runner/-/jest-runner-22.0.6.tgz#1986ee82b7968d21f04c402e5b67e3da71496f19"
@@ -3227,6 +3530,27 @@ jest-runner@^22.0.6:
     jest-worker "^22.0.6"
     throat "^4.0.0"
 
+jest-runtime@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-runtime/-/jest-runtime-21.3.0-beta.4.tgz#22238a05341baf88857e44e39a881c28807e5a36"
+  dependencies:
+    babel-jest "21.3.0-beta.4"
+    babel-plugin-istanbul "^4.1.5"
+    chalk "^2.0.1"
+    convert-source-map "^1.4.0"
+    graceful-fs "^4.1.11"
+    jest-config "21.3.0-beta.4"
+    jest-haste-map "21.3.0-beta.4"
+    jest-regex-util "^21.2.0"
+    jest-resolve "21.3.0-beta.4"
+    jest-util "21.3.0-beta.4"
+    json-stable-stringify "^1.0.1"
+    micromatch "^2.3.11"
+    slash "^1.0.0"
+    strip-bom "3.0.0"
+    write-file-atomic "^2.1.0"
+    yargs "^9.0.0"
+
 jest-runtime@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-runtime/-/jest-runtime-22.0.6.tgz#827c35e706adfc22e685de733ba3ab78cda72bfc"
@@ -3250,6 +3574,17 @@ jest-runtime@^22.0.6:
     write-file-atomic "^2.1.0"
     yargs "^10.0.3"
 
+jest-snapshot@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-21.3.0-beta.4.tgz#0ba657b322029c2855dd6ac95a6494bf101de7dc"
+  dependencies:
+    chalk "^2.0.1"
+    jest-diff "21.3.0-beta.4"
+    jest-matcher-utils "21.3.0-beta.4"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    pretty-format "21.3.0-beta.4"
+
 jest-snapshot@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-snapshot/-/jest-snapshot-22.0.6.tgz#30c1f85b6f050891c4a2060d807a3d65a594591c"
@@ -3261,6 +3596,18 @@ jest-snapshot@^22.0.6:
     natural-compare "^1.4.0"
     pretty-format "^22.0.6"
 
+jest-util@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-21.3.0-beta.4.tgz#88bd0c8d1d51098336cf6696e3ae27d38b881664"
+  dependencies:
+    callsites "^2.0.0"
+    chalk "^2.0.1"
+    graceful-fs "^4.1.11"
+    jest-message-util "21.3.0-beta.4"
+    jest-mock "21.3.0-beta.4"
+    jest-validate "21.3.0-beta.4"
+    mkdirp "^0.5.1"
+
 jest-util@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-22.0.6.tgz#539b3f21f4e2e458bb38719aa0e417109fe31657"
@@ -3273,6 +3620,15 @@ jest-util@^22.0.6:
     jest-validate "^22.0.6"
     mkdirp "^0.5.1"
 
+jest-validate@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-21.3.0-beta.4.tgz#cfb0cdb38f7eb694f909ad041687645fd1b90452"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "21.3.0-beta.4"
+    leven "^2.1.0"
+    pretty-format "21.3.0-beta.4"
+
 jest-validate@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-22.0.6.tgz#48c6972f154fa4abe20d0686a9b819d142740167"
@@ -3362,6 +3718,30 @@ jsdom@^11.5.1:
     whatwg-url "^6.3.0"
     xml-name-validator "^2.0.1"
 
+jsdom@^9.12.0:
+  version "9.12.0"
+  resolved "https://registry.yarnpkg.com/jsdom/-/jsdom-9.12.0.tgz#e8c546fffcb06c00d4833ca84410fed7f8a097d4"
+  dependencies:
+    abab "^1.0.3"
+    acorn "^4.0.4"
+    acorn-globals "^3.1.0"
+    array-equal "^1.0.0"
+    content-type-parser "^1.0.1"
+    cssom ">= 0.3.2 < 0.4.0"
+    cssstyle ">= 0.2.37 < 0.3.0"
+    escodegen "^1.6.1"
+    html-encoding-sniffer "^1.0.1"
+    nwmatcher ">= 1.3.9 < 2.0.0"
+    parse5 "^1.5.1"
+    request "^2.79.0"
+    sax "^1.2.1"
+    symbol-tree "^3.2.1"
+    tough-cookie "^2.3.2"
+    webidl-conversions "^4.0.0"
+    whatwg-encoding "^1.0.1"
+    whatwg-url "^4.3.0"
+    xml-name-validator "^2.0.1"
+
 jsesc@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-1.3.0.tgz#46c3fec8c1892b12b0833db9bc7622176dbab34b"
@@ -3370,6 +3750,14 @@ jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
+jsome@^2.3.25:
+  version "2.3.26"
+  resolved "https://registry.yarnpkg.com/jsome/-/jsome-2.3.26.tgz#8cb4438924d2c9dd5294c90adf03f35414fb3ca9"
+  dependencies:
+    chalk "^1.1.3"
+    json-stringify-safe "^5.0.1"
+    yargs "^4.8.0"
+
 json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
@@ -3388,7 +3776,7 @@ json-stable-stringify@^1.0.0, json-stable-stringify@^1.0.1:
   dependencies:
     jsonify "~0.0.0"
 
-json-stringify-safe@~5.0.1:
+json-stringify-safe@^5.0.1, json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
 
@@ -3396,7 +3784,7 @@ json5@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.4.0.tgz#054352e4c4c80c86c0923877d449de176a732c8d"
 
-json5@^0.5.0:
+json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
 
@@ -3408,7 +3796,7 @@ jsonparse@^1.2.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.0.tgz#85fc245b1d9259acc6941960b905adf64e7de0e8"
 
-jsonpointer@^4.0.0:
+jsonpointer@^4.0.0, jsonpointer@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
 
@@ -3532,12 +3920,24 @@ lodash._root@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/lodash._root/-/lodash._root-3.0.1.tgz#fba1c4524c19ee9a5f8136b4609f017cf4ded692"
 
+lodash.assign@^4.0.3, lodash.assign@^4.0.6:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
+
 lodash.escape@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lodash.escape/-/lodash.escape-3.2.0.tgz#995ee0dc18c1b48cc92effae71a10aab5b487698"
   dependencies:
     lodash._root "^3.0.0"
 
+lodash.find@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.find/-/lodash.find-4.6.0.tgz#cb0704d47ab71789ffa0de8b97dd926fb88b13b1"
+
+lodash.includes@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/lodash.includes/-/lodash.includes-4.3.0.tgz#60bb98a87cb923c68ca1e51325483314849f553f"
+
 lodash.isarguments@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
@@ -3546,6 +3946,10 @@ lodash.isarray@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
 
+lodash.isobject@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/lodash.isobject/-/lodash.isobject-3.0.2.tgz#3c8fb8d5b5bf4bf90ae06e14f2a530a4ed935e1d"
+
 lodash.keys@^3.0.0:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
@@ -3554,6 +3958,10 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
+lodash.keys@^4.0.8:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-4.2.0.tgz#a08602ac12e4fb83f91fc1fb7a360a4d9ba35205"
+
 lodash.memoize@~3.0.3:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-3.0.4.tgz#2dcbd2c287cbc0a55cc42328bd0c736150d53e3f"
@@ -3647,7 +4055,7 @@ mem@^1.1.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-merge-stream@^1.0.0, merge-stream@^1.0.1:
+merge-stream@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-1.0.1.tgz#4041202d508a342ba00174008df0c251b8c135e1"
   dependencies:
@@ -3761,7 +4169,11 @@ ncp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ncp/-/ncp-2.0.0.tgz#195a21d6c46e361d2fb1281ba38b91e9df7bdbb3"
 
-node-fetch@^1.0.1:
+node-cleanup@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/node-cleanup/-/node-cleanup-2.1.2.tgz#7ac19abd297e09a7f72a71545d951b517e4dde2c"
+
+node-fetch@^1.0.1, node-fetch@^1.7.3:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
   dependencies:
@@ -3850,6 +4262,10 @@ number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
 
+"nwmatcher@>= 1.3.9 < 2.0.0":
+  version "1.3.9"
+  resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.3.9.tgz#8bab486ff7fa3dfd086656bbe8b17116d3692d2a"
+
 nwmatcher@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/nwmatcher/-/nwmatcher-1.4.3.tgz#64348e3b3d80f035b40ac11563d278f8b72db89c"
@@ -3957,7 +4373,7 @@ os-shim@^0.1.2:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/os-shim/-/os-shim-0.1.3.tgz#6b62c3791cf7909ea35ed46e17658bb417cb3917"
 
-os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1, os-tmpdir@~1.0.2:
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
@@ -3976,6 +4392,10 @@ output-file-sync@^1.1.0:
     mkdirp "^0.5.1"
     object-assign "^4.1.0"
 
+p-cancelable@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/p-cancelable/-/p-cancelable-0.3.0.tgz#b9e123800bcebb7ac13a479be195b507b98d30fa"
+
 p-finally@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
@@ -3990,6 +4410,23 @@ p-locate@^2.0.0:
   dependencies:
     p-limit "^1.1.0"
 
+parse-diff@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/parse-diff/-/parse-diff-0.4.0.tgz#9ce35bcce8fc0b7c58f46d71113394fc0b4982dd"
+
+parse-git-config@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/parse-git-config/-/parse-git-config-1.1.1.tgz#d3a9984317132f57398712bba438e129590ddf8c"
+  dependencies:
+    extend-shallow "^2.0.1"
+    fs-exists-sync "^0.1.0"
+    git-config-path "^1.0.1"
+    ini "^1.3.4"
+
+parse-github-url@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/parse-github-url/-/parse-github-url-1.0.2.tgz#242d3b65cbcdda14bb50439e3242acf6971db395"
+
 parse-glob@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
@@ -4005,10 +4442,20 @@ parse-json@2.2.0, parse-json@^2.2.0:
   dependencies:
     error-ex "^1.2.0"
 
+parse-link-header@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-link-header/-/parse-link-header-1.0.1.tgz#bedfe0d2118aeb84be75e7b025419ec8a61140a7"
+  dependencies:
+    xtend "~4.0.1"
+
 parse-passwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
 
+parse5@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-1.5.1.tgz#9b7f3b0de32be78dc2401b17573ccaf0f6f59d94"
+
 parse5@^3.0.2:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-3.0.3.tgz#042f792ffdd36851551cf4e9e066b3874ab45b5c"
@@ -4075,6 +4522,10 @@ pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
 
+pify@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
+
 pinkie-promise@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
@@ -4085,6 +4536,10 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
+pinpoint@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/pinpoint/-/pinpoint-1.1.0.tgz#0cf7757a6977f1bf7f6a32207b709e377388e874"
+
 platform@^1.1.0:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/platform/-/platform-1.3.4.tgz#6f0fb17edaaa48f21442b3a975c063130f1c3ebd"
@@ -4094,8 +4549,8 @@ pluralize@^7.0.0:
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
 
 pn@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/pn/-/pn-1.0.0.tgz#1cf5a30b0d806cd18f88fc41a6b5d4ad615b3ba9"
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/pn/-/pn-1.1.0.tgz#e2f4cef0e219f463c179ab37463e4e1ecdccbafb"
 
 prelude-ls@~1.1.2:
   version "1.1.2"
@@ -4109,6 +4564,13 @@ prettier@1.8.1, prettier@^1.0.0:
   version "1.8.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.8.1.tgz#91064d778c08c85ac1cbe6b23195c34310d039f9"
 
+pretty-format@21.3.0-beta.4:
+  version "21.3.0-beta.4"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-21.3.0-beta.4.tgz#6b3b8aba0b7097f821156e5fd1e3bc0fa923b17f"
+  dependencies:
+    ansi-regex "^3.0.0"
+    ansi-styles "^3.2.0"
+
 pretty-format@^22.0.6:
   version "22.0.6"
   resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-22.0.6.tgz#bbb78e38445f263c2d3b9e281f4b844380990720"
@@ -4149,6 +4611,14 @@ prop-types@~15.5.7:
     fbjs "^0.8.9"
     loose-envify "^1.3.1"
 
+proxy-from-env@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.0.0.tgz#33c50398f70ea7eb96d21f7b817630a55791c7ee"
+
+prr@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"
+
 pseudomap@^1.0.1, pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
@@ -4277,7 +4747,7 @@ readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable
     string_decoder "~1.0.0"
     util-deprecate "~1.0.1"
 
-readable-stream@^2.0.5, readable-stream@^2.2.2:
+readable-stream@^2.0.5:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   dependencies:
@@ -4309,6 +4779,10 @@ readdirp@^2.0.0:
     readable-stream "^2.0.2"
     set-immediate-shim "^1.0.1"
 
+readline-sync@^1.4.7:
+  version "1.4.7"
+  resolved "https://registry.yarnpkg.com/readline-sync/-/readline-sync-1.4.7.tgz#001bfdd4c06110c3c084c63bf7c6a56022213f30"
+
 realpath-native@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/realpath-native/-/realpath-native-1.0.0.tgz#7885721a83b43bd5327609f0ddecb2482305fdf0"
@@ -4462,7 +4936,7 @@ request@2.79.0:
     tunnel-agent "~0.4.1"
     uuid "^3.0.0"
 
-request@^2.81.0:
+request@^2.79.0, request@^2.81.0:
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
   dependencies:
@@ -4520,6 +4994,10 @@ require-directory@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
 
+require-from-string@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.1.tgz#c545233e9d7da6616e9d59adfb39fc9f588676ff"
+
 require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
@@ -4565,6 +5043,10 @@ restore-cursor@^2.0.0:
     onetime "^2.0.0"
     signal-exit "^3.0.2"
 
+rfc6902@^2.2.2:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/rfc6902/-/rfc6902-2.2.2.tgz#518a4e9caac1688f3d94c9df2fdcdb6ce21f29be"
+
 right-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
@@ -4814,6 +5296,12 @@ source-map@^0.6.0:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
 
+source-map@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
+  dependencies:
+    amdefine ">=0.0.4"
+
 source-map@~0.5.6:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
@@ -4989,6 +5477,19 @@ supports-color@^4.0.0:
   dependencies:
     has-flag "^2.0.0"
 
+supports-color@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.1.0.tgz#058a021d1b619f7ddf3980d712ea3590ce7de3d5"
+  dependencies:
+    has-flag "^2.0.0"
+
+supports-hyperlinks@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/supports-hyperlinks/-/supports-hyperlinks-1.0.1.tgz#71daedf36cc1060ac5100c351bb3da48c29c0ef7"
+  dependencies:
+    has-flag "^2.0.0"
+    supports-color "^5.0.0"
+
 symbol-tree@^3.2.1:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
@@ -5156,7 +5657,7 @@ tough-cookie@>=2.3.3, tough-cookie@^2.3.3, tough-cookie@~2.3.3:
   dependencies:
     punycode "^1.4.1"
 
-tough-cookie@~2.3.0:
+tough-cookie@^2.3.2, tough-cookie@~2.3.0:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.2.tgz#f081f76e4c85720e6c37a5faced737150d84072a"
   dependencies:
@@ -5168,6 +5669,10 @@ tr46@^1.0.0:
   dependencies:
     punycode "^2.1.0"
 
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+
 trim-right@^1.0.0, trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
@@ -5204,7 +5709,7 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-typedarray@^0.0.6, typedarray@~0.0.5:
+typedarray@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
@@ -5248,6 +5753,10 @@ unique-stream@^2.0.2:
     json-stable-stringify "^1.0.0"
     through2-filter "^2.0.0"
 
+url-template@^2.0.8:
+  version "2.0.8"
+  resolved "https://registry.yarnpkg.com/url-template/-/url-template-2.0.8.tgz#fc565a3cccbff7730c775f5641f9555791439f21"
+
 user-home@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
@@ -5313,6 +5822,14 @@ vlq@^0.2.1:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/vlq/-/vlq-0.2.2.tgz#e316d5257b40b86bb43cb8d5fea5d7f54d6b0ca1"
 
+vm2@patriksimek/vm2#custom_files:
+  version "3.5.0"
+  resolved "https://codeload.github.com/patriksimek/vm2/tar.gz/7e82f90ac705fc44fad044147cb0df09b4c79a57"
+
+voca@^1.3.1:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/voca/-/voca-1.4.0.tgz#e15ac58b38290b72acc0c330366b6cc7984924d7"
+
 walker@~1.0.5:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/walker/-/walker-1.0.7.tgz#2f7f9b8fd10d677262b18a884e28d19618e028fb"
@@ -5323,6 +5840,14 @@ watch@~0.10.0:
   version "0.10.0"
   resolved "https://registry.yarnpkg.com/watch/-/watch-0.10.0.tgz#77798b2da0f9910d595f1ace5b0c2258521f21dc"
 
+webidl-conversions@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
+
+webidl-conversions@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.1.tgz#8015a17ab83e7e1b311638486ace81da6ce206a0"
+
 webidl-conversions@^4.0.1, webidl-conversions@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
@@ -5344,6 +5869,13 @@ whatwg-fetch@>=0.10.0:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"
 
+whatwg-url@^4.3.0:
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-4.7.1.tgz#df4dc2e3f25a63b1fa5b32ed6d6c139577d690de"
+  dependencies:
+    tr46 "~0.0.3"
+    webidl-conversions "^3.0.0"
+
 whatwg-url@^6.3.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-6.4.0.tgz#08fdf2b9e872783a7a1f6216260a1d66cc722e08"
@@ -5386,6 +5918,10 @@ window-size@^0.1.2:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"
 
+window-size@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.2.0.tgz#b4315bb4214a3d7058ebeee892e13fa24d98b075"
+
 wordwrap@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
@@ -5398,6 +5934,13 @@ wordwrap@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
 
+worker-farm@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.3.1.tgz#4333112bb49b17aa050b87895ca6b2cacf40e5ff"
+  dependencies:
+    errno ">=0.1.1 <0.2.0-0"
+    xtend ">=4.0.0 <4.1.0-0"
+
 wrap-ansi@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
@@ -5439,6 +5982,13 @@ yallist@^2.0.0, yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
 
+yargs-parser@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-2.4.1.tgz#85568de3cf150ff49fa51825f03a8c880ddcc5c4"
+  dependencies:
+    camelcase "^3.0.0"
+    lodash.assign "^4.0.6"
+
 yargs-parser@^4.2.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-4.2.1.tgz#29cceac0dc4f03c6c87b4a9f217dd18c9f74871c"
@@ -5451,12 +6001,6 @@ yargs-parser@^7.0.0:
   dependencies:
     camelcase "^4.1.0"
 
-yargs-parser@^8.1.0:
-  version "8.1.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-8.1.0.tgz#f1376a33b6629a5d063782944da732631e966950"
-  dependencies:
-    camelcase "^4.1.0"
-
 yargs@8.0.1:
   version "8.0.1"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-8.0.1.tgz#420ef75e840c1457a80adcca9bc6fa3849de51aa"
@@ -5475,22 +6019,24 @@ yargs@8.0.1:
     y18n "^3.2.1"
     yargs-parser "^7.0.0"
 
-yargs@^10.0.3:
-  version "10.1.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-10.1.0.tgz#85d98f2264c7487f18c4607b79c7e4e3b160e69e"
+yargs@^4.8.0:
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-4.8.1.tgz#c0c42924ca4aaa6b0e6da1739dfb216439f9ddc0"
   dependencies:
-    cliui "^4.0.0"
+    cliui "^3.2.0"
     decamelize "^1.1.1"
-    find-up "^2.1.0"
     get-caller-file "^1.0.1"
-    os-locale "^2.0.0"
+    lodash.assign "^4.0.3"
+    os-locale "^1.4.0"
+    read-pkg-up "^1.0.1"
     require-directory "^2.1.1"
     require-main-filename "^1.0.1"
     set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
+    string-width "^1.0.1"
+    which-module "^1.0.0"
+    window-size "^0.2.0"
     y18n "^3.2.1"
-    yargs-parser "^8.1.0"
+    yargs-parser "^2.4.1"
 
 yargs@^6.3.0, yargs@^6.5.0:
   version "6.6.0"
@@ -5510,6 +6056,24 @@ yargs@^6.3.0, yargs@^6.5.0:
     y18n "^3.2.1"
     yargs-parser "^4.2.0"
 
+yargs@^9.0.0:
+  version "9.0.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-9.0.1.tgz#52acc23feecac34042078ee78c0c007f5085db4c"
+  dependencies:
+    camelcase "^4.1.0"
+    cliui "^3.2.0"
+    decamelize "^1.1.1"
+    get-caller-file "^1.0.1"
+    os-locale "^2.0.0"
+    read-pkg-up "^2.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1"
+    yargs-parser "^7.0.0"
+
 yargs@~3.10.0:
   version "3.10.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"