diff --git a/.eslintignore b/.eslintignore
index be7ad4b4..69933d2d 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -4,6 +4,7 @@
 !/**/.eslintrc.js
 /test.js
 /scripts/build/shims
+/scripts/release/node_modules
 /coverage/
 /dist/
 **/node_modules/**
diff --git a/.gitignore b/.gitignore
index 6f35f106..aaa9b1e3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 /node_modules
+/scripts/release/node_modules
 *.log
 /errors
 /test.js
diff --git a/scripts/.eslintrc.yml b/scripts/.eslintrc.yml
index d68c539d..63b77a22 100644
--- a/scripts/.eslintrc.yml
+++ b/scripts/.eslintrc.yml
@@ -1,2 +1,9 @@
+parserOptions:
+  ecmaVersion: 2017
 rules:
   no-console: off
+overrides:
+  files:
+    - test-dist.js
+  parserOptions:
+    ecmaVersion: 6
diff --git a/scripts/build/build.js b/scripts/build/build.js
index 60ddf16a..a41a1eda 100644
--- a/scripts/build/build.js
+++ b/scripts/build/build.js
@@ -5,23 +5,22 @@ const stringWidth = require("string-width");
 const bundler = require("./bundler");
 const bundleConfigs = require("./config");
 const util = require("./util");
-const formatMarkdown = require("../../website/playground/markdown");
 
 // Errors in promises should be fatal.
 const loggedErrors = new Set();
 process.on("unhandledRejection", err => {
-  if (loggedErrors.has(err)) {
-    // No need to print it twice.
-    process.exit(1);
+  // No need to print it twice.
+  if (!loggedErrors.has(err)) {
+    console.error(err);
   }
-  throw err;
+  process.exit(1);
 });
 
 const OK = chalk.reset.inverse.bold.green(" DONE ");
 const FAIL = chalk.reset.inverse.bold.red(" FAIL ");
 
 function fitTerminal(input) {
-  const columns = process.stdout.columns || 80;
+  const columns = Math.min(process.stdout.columns, 80);
   const WIDTH = columns - stringWidth(OK) + 1;
   if (input.length < WIDTH) {
     input += Array(WIDTH - input.length).join(chalk.dim("."));
@@ -65,30 +64,6 @@ async function preparePackage() {
   await util.copyFile("./README.md", "./dist/README.md");
 }
 
-async function updateIssueTemplate() {
-  const filename = ".github/ISSUE_TEMPLATE.md";
-  const issueTemplate = await util.readFile(filename, "utf8");
-
-  const pkg = await util.readJson("package.json");
-  await util.writeFile(
-    filename,
-    issueTemplate.replace(
-      /-->[^]*$/,
-      "-->\n\n" +
-        formatMarkdown(
-          "// code snippet",
-          "// code snippet",
-          "",
-          pkg.version,
-          "https://prettier.io/playground/#.....",
-          { parser: "babylon" },
-          [["# Options (if any):", true], ["--single-quote", true]],
-          true
-        )
-    )
-  );
-}
-
 async function run() {
   await util.asyncRimRaf("dist");
 
@@ -98,7 +73,6 @@ async function run() {
   }
 
   await preparePackage();
-  await updateIssueTemplate();
 }
 
 run();
diff --git a/scripts/release/README.md b/scripts/release/README.md
new file mode 100644
index 00000000..f4dab40b
--- /dev/null
+++ b/scripts/release/README.md
@@ -0,0 +1,13 @@
+# Release script
+
+## Usage
+
+```
+./scripts/release/release.js --version NEW_VERSION
+```
+
+The script its own `package.json` so we can reinstall the root's `node_modules/` while making the release.
+
+## Credits
+
+This script was inspired by [React's release script](https://github.com/facebook/react/tree/001f9ef/scripts/release).
diff --git a/scripts/release/package.json b/scripts/release/package.json
new file mode 100644
index 00000000..587e5d47
--- /dev/null
+++ b/scripts/release/package.json
@@ -0,0 +1,13 @@
+{
+  "private": true,
+  "dependencies": {
+    "chalk": "2.4.1",
+    "child-process-promise": "2.2.1",
+    "dedent": "0.7.0",
+    "minimist": "1.2.0",
+    "node-fetch": "2.1.2",
+    "prs-merged-since": "1.0.1",
+    "semver": "5.5.0",
+    "string-width": "2.1.1"
+  }
+}
diff --git a/scripts/release/release.js b/scripts/release/release.js
new file mode 100644
index 00000000..bbb978c9
--- /dev/null
+++ b/scripts/release/release.js
@@ -0,0 +1,54 @@
+#!/usr/bin/env node
+
+"use strict";
+
+async function run() {
+  const chalk = require("chalk");
+  const dedent = require("dedent");
+  const minimist = require("minimist");
+
+  const { readJson } = require("./utils");
+
+  const params = minimist(process.argv.slice(2), {
+    string: ["version"],
+    boolean: ["dry"],
+    alias: { v: "version" }
+  });
+  params.previousVersion = (await readJson("package.json")).version;
+
+  const steps = [
+    require("./steps/validate-new-version"),
+    require("./steps/check-git-status"),
+    require("./steps/install-dependencies"),
+    require("./steps/run-tests"),
+    require("./steps/update-version"),
+    require("./steps/generate-bundles"),
+    require("./steps/update-changelog"),
+    require("./steps/push-to-git"),
+    require("./steps/publish-to-npm"),
+    require("./steps/bump-prettier"),
+    require("./steps/post-publish-steps")
+  ];
+
+  try {
+    for (const step of steps) {
+      await step(params);
+    }
+  } catch (error) {
+    const message = dedent(error.message.trim());
+    const stack = error.stack.replace(message, "");
+    console.error(`${chalk.red("error")} ${message}\n${stack}`);
+    process.exit(1);
+  }
+}
+
+// Install script's dependencies before any require
+const { exec } = require("child_process");
+exec("yarn install", { cwd: __dirname }, error => {
+  if (error) {
+    console.error(error);
+    process.exit(1);
+  } else {
+    run();
+  }
+});
diff --git a/scripts/release/steps/bump-prettier.js b/scripts/release/steps/bump-prettier.js
new file mode 100644
index 00000000..1395e7fa
--- /dev/null
+++ b/scripts/release/steps/bump-prettier.js
@@ -0,0 +1,32 @@
+"use strict";
+
+const { exec, spawn } = require("child-process-promise");
+const { logPromise } = require("../utils");
+
+async function format() {
+  await exec("yarn lint --fix");
+  await exec("yarn lint-docs --fix");
+}
+
+async function commit(version) {
+  await spawn("git", [
+    "commit",
+    "-am",
+    `Bump Prettier dependency to ${version}`
+  ]);
+  await exec("git push");
+}
+
+module.exports = async function({ dry, version }) {
+  if (dry) {
+    return;
+  }
+
+  await logPromise(
+    "Installing Prettier",
+    spawn("yarn", ["add", "--dev", `prettier@${version}`])
+  );
+
+  await logPromise("Updating files", format());
+  await logPromise("Committing changed files", commit(version));
+};
diff --git a/scripts/release/steps/check-git-status.js b/scripts/release/steps/check-git-status.js
new file mode 100644
index 00000000..15e1bb71
--- /dev/null
+++ b/scripts/release/steps/check-git-status.js
@@ -0,0 +1,14 @@
+"use strict";
+
+const { exec } = require("child-process-promise");
+
+module.exports = async function() {
+  const status = (await exec("git status --porcelain")).stdout;
+
+  if (status) {
+    throw Error(
+      "Uncommited local changes. " +
+        "Please revert or commit all local changes before making a release."
+    );
+  }
+};
diff --git a/scripts/release/steps/generate-bundles.js b/scripts/release/steps/generate-bundles.js
new file mode 100644
index 00000000..87b6534a
--- /dev/null
+++ b/scripts/release/steps/generate-bundles.js
@@ -0,0 +1,19 @@
+"use strict";
+
+const chalk = require("chalk");
+const { runYarn, logPromise, readJson } = require("../utils");
+
+module.exports = async function({ version }) {
+  await logPromise("Generating bundles", runYarn("build"));
+
+  const builtPkg = await readJson("dist/package.json");
+  if (builtPkg.version !== version) {
+    throw Error(
+      `Expected ${version} in dist/package.json but found ${builtPkg.version}`
+    );
+  }
+
+  await logPromise("Running tests on generated bundles", runYarn("test:dist"));
+
+  console.log(chalk.green.bold("Build successful!\n"));
+};
diff --git a/scripts/release/steps/install-dependencies.js b/scripts/release/steps/install-dependencies.js
new file mode 100644
index 00000000..e41aa207
--- /dev/null
+++ b/scripts/release/steps/install-dependencies.js
@@ -0,0 +1,20 @@
+"use strict";
+
+const { exec } = require("child-process-promise");
+const { logPromise } = require("../utils");
+
+async function install() {
+  await exec("rm -rf node_modules");
+  await exec("yarn install");
+
+  const status = (await exec("git ls-files -m")).stdout.trim();
+  if (status) {
+    throw Error(
+      "The lockfile needs to be updated, commit it before making the release."
+    );
+  }
+}
+
+module.exports = function() {
+  return logPromise("Installing NPM dependencies", install());
+};
diff --git a/scripts/release/steps/post-publish-steps.js b/scripts/release/steps/post-publish-steps.js
new file mode 100644
index 00000000..4355e0c2
--- /dev/null
+++ b/scripts/release/steps/post-publish-steps.js
@@ -0,0 +1,65 @@
+"use strict";
+
+const chalk = require("chalk");
+const dedent = require("dedent");
+const fetch = require("node-fetch");
+const { exec } = require("child-process-promise");
+const { logPromise, waitForEnter } = require("../utils");
+
+const SCHEMA_REPO = "SchemaStore/schemastore";
+const SCHEMA_PATH = "src/schemas/json/prettierrc.json";
+const RAW_URL = `https://raw.githubusercontent.com/${SCHEMA_REPO}/master/${SCHEMA_PATH}`;
+const EDIT_URL = `https://github.com/${SCHEMA_REPO}/edit/master/${SCHEMA_PATH}`;
+
+// Any optional or manual step can be warned in this script.
+
+async function checkSchema() {
+  const schema = (await exec("node scripts/generate-schema.js")).stdout.trim();
+  const remoteSchema = await logPromise(
+    "Checking current schema in SchemaStore",
+    fetch(RAW_URL)
+      .then(r => r.text())
+      .then(t => t.trim())
+  );
+
+  if (schema === remoteSchema) {
+    return;
+  }
+
+  return dedent(chalk`
+    {bold.underline The schema in {yellow SchemaStore} needs an update.}
+    - Open {cyan.underline ${EDIT_URL}}
+    - Run {yellow node scripts/generate-schema.js} and copy the new schema
+    - Paste it on GitHub interface
+    - Open a PR
+  `);
+}
+
+function twitterAnnouncement() {
+  return dedent(chalk`
+    {bold.underline Announce on Twitter}
+    - Open {cyan.underline https://tweetdeck.twitter.com}
+    - Make sure you are tweeting from the {yellow @PrettierCode} account.
+    - Tweet about the release, including the blog post URL.
+  `);
+}
+
+module.exports = async function() {
+  const steps = [await checkSchema(), twitterAnnouncement()].filter(Boolean);
+
+  console.log(chalk.bold.green("The script has finished!\n"));
+
+  if (steps.length === 0) {
+    return;
+  }
+
+  console.log(
+    dedent(chalk`
+      {yellow.bold The following ${
+        steps.length === 1 ? "step is" : "steps are"
+      } optional.}
+
+      ${steps.join("\n\n")}
+    `)
+  );
+};
diff --git a/scripts/release/steps/publish-to-npm.js b/scripts/release/steps/publish-to-npm.js
new file mode 100644
index 00000000..3e2e9d08
--- /dev/null
+++ b/scripts/release/steps/publish-to-npm.js
@@ -0,0 +1,36 @@
+"use strict";
+
+const chalk = require("chalk");
+const dedent = require("dedent");
+const { exec } = require("child-process-promise");
+const { logPromise, waitForEnter } = require("../utils");
+
+module.exports = async function({ dry, version }) {
+  if (dry) {
+    return;
+  }
+
+  await logPromise("Publishing to npm", exec("npm publish", { cwd: "./dist" }));
+
+  console.log(
+    dedent(chalk`
+      {green.bold Prettier ${version} published!}
+
+      {yellow.bold Some manual steps are necessary.}
+
+      {bold.underline Create a GitHub Release}
+      - Go to {cyan.underline https://github.com/prettier/prettier/releases/new?tag=${version}}
+      - Copy release notes from {yellow CHANGELOG.md}
+      - Attach all files in {yellow dist/} folder.
+      - Press {bgGreen.black  Publish release }
+
+      {bold.underline Test the new releae}
+      - In a new session, run {yellow npm i prettier@latest} in another directory
+      - Test the API and CLI
+
+      After that, we can proceed to bump this repo's Prettier dependency.
+      Press any key to continue.
+    `)
+  );
+  await waitForEnter();
+};
diff --git a/scripts/release/steps/push-to-git.js b/scripts/release/steps/push-to-git.js
new file mode 100644
index 00000000..63122917
--- /dev/null
+++ b/scripts/release/steps/push-to-git.js
@@ -0,0 +1,19 @@
+"use strict";
+
+const { exec, spawn } = require("child-process-promise");
+const { logPromise } = require("../utils");
+
+async function pushGit({ version }) {
+  await spawn("git", ["commit", "-am", `Release ${version}`]);
+  await spawn("git", ["tag", "-a", version, "-m", `Release ${version}`]);
+  await exec("git push");
+  await exec("git push --tags");
+}
+
+module.exports = function(params) {
+  if (params.dry) {
+    return;
+  }
+
+  return logPromise("Committing and pushing to remote", pushGit(params));
+};
diff --git a/scripts/release/steps/run-tests.js b/scripts/release/steps/run-tests.js
new file mode 100644
index 00000000..970f5f78
--- /dev/null
+++ b/scripts/release/steps/run-tests.js
@@ -0,0 +1,9 @@
+"use strict";
+
+const { runYarn, logPromise } = require("../utils");
+
+module.exports = async function() {
+  await logPromise("Running linter", runYarn("lint"));
+  await logPromise("Running linter on docs", runYarn("lint-docs"));
+  await logPromise("Running tests", runYarn("test"));
+};
diff --git a/scripts/release/steps/update-changelog.js b/scripts/release/steps/update-changelog.js
new file mode 100644
index 00000000..1d77fc99
--- /dev/null
+++ b/scripts/release/steps/update-changelog.js
@@ -0,0 +1,100 @@
+"use strict";
+
+const chalk = require("chalk");
+const dedent = require("dedent");
+const fs = require("fs");
+const prsMergedSince = require("prs-merged-since");
+const semver = require("semver");
+const { logPromise, waitForEnter } = require("../utils");
+
+function getBlogPostInfo(version) {
+  const date = new Date();
+  const year = date.getFullYear();
+  const month = new String(date.getMonth() + 1).padStart(2, "0");
+  const day = new String(date.getDate()).padStart(2, "0");
+
+  return {
+    file: `website/blog/${year}-${month}-${day}-${version}.md`,
+    path: `blog/${year}/${month}/${day}/${version}.html`
+  };
+}
+
+async function getMergedPrs(previousVersion) {
+  const prs = await prsMergedSince({
+    repo: "prettier/prettier",
+    tag: previousVersion,
+    githubApiToken: process.env.GITHUB_API_TOKEN
+  });
+  return prs
+    .map(pr => `- ${pr.title} ([#${pr.number}](${pr.html_url}))`)
+    .join("\n");
+}
+
+function writeChangelog({ version, previousVersion, releaseNotes }) {
+  const changelog = fs.readFileSync("CHANGELOG.md", "utf-8");
+  const newEntry = dedent`
+    # ${version}
+
+    [link](https://github.com/prettier/prettier/compare/${previousVersion}...${version})
+
+    ${releaseNotes}
+  `;
+  fs.writeFileSync("CHANGELOG.md", newEntry + "\n\n" + changelog);
+}
+
+module.exports = async function({ version, previousVersion }) {
+  const semverDiff = semver.diff(version, previousVersion);
+
+  if (semverDiff !== "patch") {
+    const blogPost = getBlogPostInfo(version);
+    writeChangelog({
+      version,
+      previousVersion,
+      releaseNotes: `- [Release Notes](https://prettier.io/${blogPost.path})`
+    });
+    if (fs.existsSync(blogPost.file)) {
+      // Everything is fine, this step is finished
+      return;
+    }
+    console.warn(
+      dedent(chalk`
+        {yellow warning} The file {bold ${
+          blogPost.file
+        }} doesn't exist, but it will be referenced in {bold CHANGELOG.md}. Make sure to create it later.
+
+        Press ENTER to continue.
+      `)
+    );
+  } else {
+    if (!process.env.GITHUB_API_TOKEN) {
+      console.log(
+        chalk`{yellow warning} GitHub API access token missing. You can expose a token via {bold GITHUB_API_TOKEN} environment variable.`
+      );
+    }
+
+    const releaseNotes = await logPromise(
+      "Fetching merged PRs",
+      getMergedPrs(previousVersion)
+    );
+    writeChangelog({
+      version,
+      previousVersion,
+      releaseNotes
+    });
+    console.log();
+    console.log(
+      dedent(chalk`
+        {yellow.bold A manual step is necessary.}
+
+        The script has updated the file {bold CHANGELOG.md} with all the merged PRs since the last release.
+        You must edit it to focus only on relevant changes and make sure they have meaningful titles.
+
+        You don't need to commit the file, the script will take care of that.
+
+        When you're finished, press ENTER to continue.
+      `)
+    );
+  }
+
+  await waitForEnter();
+};
diff --git a/scripts/release/steps/update-version.js b/scripts/release/steps/update-version.js
new file mode 100644
index 00000000..c10c95b6
--- /dev/null
+++ b/scripts/release/steps/update-version.js
@@ -0,0 +1,27 @@
+"use strict";
+
+const { exec } = require("child-process-promise");
+const { readFileSync, writeFileSync } = require("fs");
+const { logPromise, readJson, writeJson } = require("../utils");
+
+async function bump({ version }) {
+  const pkg = await readJson("package.json");
+  pkg.version = version;
+  await writeJson("package.json", pkg, { spaces: 2 });
+
+  // Update .github/ISSUE_TEMPLATE.MD
+  const issueFile = ".github/ISSUE_TEMPLATE.md";
+  const issueTempl = readFileSync(issueFile, "utf-8");
+  writeFileSync(
+    issueFile,
+    issueTempl.replace(/^\*\*Prettier .*?\*\*$/m, `**Prettier ${version}**`)
+  );
+}
+
+module.exports = async function(params) {
+  await logPromise("Bumping version", bump(params));
+  await logPromise(
+    "Updating integration snapshots",
+    exec("yarn test-integration -u")
+  );
+};
diff --git a/scripts/release/steps/validate-new-version.js b/scripts/release/steps/validate-new-version.js
new file mode 100644
index 00000000..3f529c0b
--- /dev/null
+++ b/scripts/release/steps/validate-new-version.js
@@ -0,0 +1,14 @@
+"use strict";
+
+const chalk = require("chalk");
+const semver = require("semver");
+
+module.exports = async function({ version, previousVersion }) {
+  if (!semver.valid(version)) {
+    throw Error(`Invalid version specified`);
+  }
+
+  if (!semver.gt(version, previousVersion)) {
+    throw Error(`Version ${chalk.yellow(version)} has already been published`);
+  }
+};
diff --git a/scripts/release/utils.js b/scripts/release/utils.js
new file mode 100644
index 00000000..1c5a8a3c
--- /dev/null
+++ b/scripts/release/utils.js
@@ -0,0 +1,78 @@
+"use strict";
+
+require("readline").emitKeypressEvents(process.stdin);
+
+const chalk = require("chalk");
+const fs = require("fs");
+const { spawn } = require("child-process-promise");
+const stringWidth = require("string-width");
+
+const OK = chalk.bgGreen.black(" DONE ");
+const FAIL = chalk.bgRed.black(" FAIL ");
+
+function fitTerminal(input) {
+  const columns = Math.min(process.stdout.columns, 80);
+  const WIDTH = columns - stringWidth(OK) + 1;
+  if (input.length < WIDTH) {
+    input += Array(WIDTH - input.length).join(chalk.dim("."));
+  }
+  return input;
+}
+
+function logPromise(name, promise) {
+  process.stdout.write(fitTerminal(name));
+
+  return promise
+    .then(result => {
+      process.stdout.write(`${OK}\n`);
+      return result;
+    })
+    .catch(err => {
+      process.stdout.write(`${FAIL}\n`);
+      throw err;
+    });
+}
+
+function runYarn(script) {
+  return spawn("yarn", ["--silent", script], {
+    capture: ["stdout", "stderr"]
+  }).catch(error => {
+    throw Error(`\`yarn ${script}\` failed\n${error.stdout}`);
+  });
+}
+
+function waitForEnter() {
+  process.stdin.setRawMode(true);
+
+  return new Promise((resolve, reject) => {
+    process.stdin.on("keypress", listener);
+    process.stdin.resume();
+
+    function listener(ch, key) {
+      if (key.name === "return") {
+        process.stdin.setRawMode(false);
+        process.stdin.removeListener("keypress", listener);
+        process.stdin.pause();
+        resolve();
+      } else if (key.ctrl && key.name === "c") {
+        reject(Error("Process terminated by the user"));
+      }
+    }
+  });
+}
+
+function readJson(filename) {
+  return JSON.parse(fs.readFileSync(filename, "utf-8"));
+}
+
+function writeJson(filename, content) {
+  fs.writeFileSync(filename, JSON.stringify(content, null, 2) + "\n");
+}
+
+module.exports = {
+  runYarn,
+  logPromise,
+  readJson,
+  writeJson,
+  waitForEnter
+};
diff --git a/scripts/release/yarn.lock b/scripts/release/yarn.lock
new file mode 100644
index 00000000..c5fb117a
--- /dev/null
+++ b/scripts/release/yarn.lock
@@ -0,0 +1,482 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@octokit/rest@^15.2.6":
+  version "15.8.1"
+  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-15.8.1.tgz#8bcdece90026d3af5edd73bd49a8732cb3801d29"
+  dependencies:
+    before-after-hook "^1.1.0"
+    btoa-lite "^1.0.0"
+    debug "^3.1.0"
+    http-proxy-agent "^2.1.0"
+    https-proxy-agent "^2.2.0"
+    lodash "^4.17.4"
+    node-fetch "^2.1.1"
+    url-template "^2.0.8"
+
+agent-base@4, agent-base@^4.1.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.0.tgz#9838b5c3392b962bad031e6a4c5e1024abec45ce"
+  dependencies:
+    es6-promisify "^5.0.0"
+
+ansi-regex@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+
+ansi-regex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
+
+ansi-styles@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  dependencies:
+    color-convert "^1.9.0"
+
+before-after-hook@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-1.1.0.tgz#83165e15a59460d13702cb8febd6a1807896db5a"
+
+btoa-lite@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/btoa-lite/-/btoa-lite-1.0.0.tgz#337766da15801210fdd956c22e9c6891ab9d0337"
+
+camelcase@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
+
+chalk@2.4.1, chalk@^2.0.1, chalk@^2.3.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
+child-process-promise@2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/child-process-promise/-/child-process-promise-2.2.1.tgz#4730a11ef610fad450b8f223c79d31d7bdad8074"
+  dependencies:
+    cross-spawn "^4.0.2"
+    node-version "^1.0.0"
+    promise-polyfill "^6.0.1"
+
+cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
+  dependencies:
+    restore-cursor "^2.0.0"
+
+cli-spinners@^1.1.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-1.3.1.tgz#002c1990912d0d59580c93bd36c056de99e4259a"
+
+cliui@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.1.0.tgz#348422dbe82d800b3022eef4f6ac10bf2e4d1b49"
+  dependencies:
+    string-width "^2.1.1"
+    strip-ansi "^4.0.0"
+    wrap-ansi "^2.0.0"
+
+clone@^1.0.2:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.4.tgz#da309cc263df15994c688ca902179ca3c7cd7c7e"
+
+code-point-at@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+
+color-convert@^1.9.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
+  dependencies:
+    color-name "^1.1.1"
+
+color-name@^1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+
+cross-spawn@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-4.0.2.tgz#7b9247621c23adfdd3856004a823cbe397424d41"
+  dependencies:
+    lru-cache "^4.0.1"
+    which "^1.2.9"
+
+cross-spawn@^5.0.1:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  dependencies:
+    lru-cache "^4.0.1"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
+debug@3.1.0, debug@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  dependencies:
+    ms "2.0.0"
+
+decamelize@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+
+dedent@0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
+
+defaults@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/defaults/-/defaults-1.0.3.tgz#c656051e9817d9ff08ed881477f3fe4019f3ef7d"
+  dependencies:
+    clone "^1.0.2"
+
+es6-promise@^4.0.3:
+  version "4.2.4"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.4.tgz#dc4221c2b16518760bd8c39a52d8f356fc00ed29"
+
+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"
+
+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"
+
+execa@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.7.0.tgz#944becd34cc41ee32a63a9faf27ad5a65fc59777"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
+find-up@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
+  dependencies:
+    locate-path "^2.0.0"
+
+get-caller-file@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
+
+get-stream@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
+
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+
+http-proxy-agent@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/http-proxy-agent/-/http-proxy-agent-2.1.0.tgz#e4821beef5b2142a2026bd73926fe537631c5405"
+  dependencies:
+    agent-base "4"
+    debug "3.1.0"
+
+https-proxy-agent@^2.2.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz#51552970fa04d723e04c56d04178c3f92592bbc0"
+  dependencies:
+    agent-base "^4.1.0"
+    debug "^3.1.0"
+
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+
+is-fullwidth-code-point@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
+
+is-stream@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+
+isexe@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
+
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  dependencies:
+    invert-kv "^1.0.0"
+
+locate-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-2.0.0.tgz#2b568b265eec944c6d9c0de9c3dbbbca0354cd8e"
+  dependencies:
+    p-locate "^2.0.0"
+    path-exists "^3.0.0"
+
+lodash@^4.17.4:
+  version "4.17.10"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+
+log-symbols@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
+  dependencies:
+    chalk "^2.0.1"
+
+lru-cache@^4.0.1:
+  version "4.1.3"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
+  dependencies:
+    pseudomap "^1.0.2"
+    yallist "^2.1.2"
+
+mem@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
+  dependencies:
+    mimic-fn "^1.0.0"
+
+mimic-fn@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
+
+minimist@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+
+ms@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+
+node-fetch@2.1.2, node-fetch@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.1.2.tgz#ab884e8e7e57e38a944753cec706f788d1768bb5"
+
+node-version@^1.0.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/node-version/-/node-version-1.1.3.tgz#1081c87cce6d2dbbd61d0e51e28c287782678496"
+
+npm-run-path@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
+  dependencies:
+    path-key "^2.0.0"
+
+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"
+
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  dependencies:
+    mimic-fn "^1.0.0"
+
+ora@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/ora/-/ora-2.1.0.tgz#6caf2830eb924941861ec53a173799e008b51e5b"
+  dependencies:
+    chalk "^2.3.1"
+    cli-cursor "^2.1.0"
+    cli-spinners "^1.1.0"
+    log-symbols "^2.2.0"
+    strip-ansi "^4.0.0"
+    wcwidth "^1.0.1"
+
+os-locale@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
+  dependencies:
+    execa "^0.7.0"
+    lcid "^1.0.0"
+    mem "^1.1.0"
+
+p-finally@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
+
+p-limit@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.2.0.tgz#0e92b6bedcb59f022c13d0f1949dc82d15909f1c"
+  dependencies:
+    p-try "^1.0.0"
+
+p-locate@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
+  dependencies:
+    p-limit "^1.1.0"
+
+p-try@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
+
+path-exists@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
+
+path-key@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
+
+promise-polyfill@^6.0.1:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/promise-polyfill/-/promise-polyfill-6.1.0.tgz#dfa96943ea9c121fca4de9b5868cb39d3472e057"
+
+prs-merged-since@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/prs-merged-since/-/prs-merged-since-1.0.1.tgz#2e9905f0843ec0189c3168a6eb31087982ac47fb"
+  dependencies:
+    "@octokit/rest" "^15.2.6"
+    ora "^2.0.0"
+    yargs "^11.0.0"
+
+pseudomap@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
+
+require-directory@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+
+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"
+
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
+  dependencies:
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
+
+semver@5.5.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
+
+set-blocking@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
+
+shebang-command@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
+  dependencies:
+    shebang-regex "^1.0.0"
+
+shebang-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
+
+signal-exit@^3.0.0, signal-exit@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
+
+string-width@2.1.1, string-width@^2.0.0, string-width@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^4.0.0"
+
+string-width@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    strip-ansi "^3.0.0"
+
+strip-ansi@^3.0.0, strip-ansi@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  dependencies:
+    ansi-regex "^2.0.0"
+
+strip-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
+  dependencies:
+    ansi-regex "^3.0.0"
+
+strip-eof@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+
+supports-color@^5.3.0:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
+  dependencies:
+    has-flag "^3.0.0"
+
+url-template@^2.0.8:
+  version "2.0.8"
+  resolved "https://registry.yarnpkg.com/url-template/-/url-template-2.0.8.tgz#fc565a3cccbff7730c775f5641f9555791439f21"
+
+wcwidth@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/wcwidth/-/wcwidth-1.0.1.tgz#f0b0dcf915bc5ff1528afadb2c0e17b532da2fe8"
+  dependencies:
+    defaults "^1.0.3"
+
+which-module@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
+
+which@^1.2.9:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
+  dependencies:
+    isexe "^2.0.0"
+
+wrap-ansi@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+
+y18n@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+
+yallist@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
+
+yargs-parser@^9.0.2:
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-9.0.2.tgz#9ccf6a43460fe4ed40a9bb68f48d43b8a68cc077"
+  dependencies:
+    camelcase "^4.1.0"
+
+yargs@^11.0.0:
+  version "11.0.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.0.0.tgz#c052931006c5eee74610e5fc0354bedfd08a201b"
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^1.1.1"
+    find-up "^2.1.0"
+    get-caller-file "^1.0.1"
+    os-locale "^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 "^9.0.2"