diff --git a/packages/@vuepress/core/lib/dev.js b/packages/@vuepress/core/lib/dev.js
index 534fe7f1d4..f8124f6968 100644
--- a/packages/@vuepress/core/lib/dev.js
+++ b/packages/@vuepress/core/lib/dev.js
@@ -1,26 +1,31 @@
 'use strict'
 
-module.exports = async function dev (sourceDir, cliOptions = {}) {
+module.exports = async (sourceDir, cliOptions = {}, ctx) => {
+  const { server, host, port } = await prepareServer(sourceDir, cliOptions, ctx)
+  server.listen(port, host, err => {
+    if (err) {
+      console.log(err)
+    }
+  })
+}
+
+module.exports.prepare = prepareServer
+
+async function prepareServer (sourceDir, cliOptions = {}, context) {
+  const WebpackDevServer = require('webpack-dev-server')
   const { path } = require('@vuepress/shared-utils')
   const webpack = require('webpack')
   const chokidar = require('chokidar')
-  const serve = require('webpack-serve')
-  const convert = require('koa-connect')
-  const mount = require('koa-mount')
-  const range = require('koa-range')
-  const serveStatic = require('koa-static')
-  const history = require('connect-history-api-fallback')
 
   const prepare = require('./prepare/index')
-  const { chalk, fs, logger } = require('@vuepress/shared-utils')
+  const { chalk, logger } = require('@vuepress/shared-utils')
   const HeadPlugin = require('./webpack/HeadPlugin')
   const DevLogPlugin = require('./webpack/DevLogPlugin')
   const createClientConfig = require('./webpack/createClientConfig')
   const { applyUserWebpackConfig } = require('./util/index')
   const { frontmatterEmitter } = require('@vuepress/markdown-loader')
 
-  logger.wait('Extracting site metadata...')
-  const ctx = await prepare(sourceDir, cliOptions, false /* isProd */)
+  const ctx = context || await prepare(sourceDir, cliOptions, false /* isProd */)
 
   // setup watchers to update options and dynamically generated files
   const update = (reason) => {
@@ -105,52 +110,52 @@ module.exports = async function dev (sourceDir, cliOptions = {}) {
     config = applyUserWebpackConfig(userConfig, config, false /* isServer */)
   }
 
+  const serverConfig = Object.assign({
+    disableHostCheck: true,
+    compress: true,
+    clientLogLevel: 'error',
+    hot: true,
+    quiet: true,
+    headers: {
+      'access-control-allow-origin': '*'
+    },
+    publicPath: ctx.base,
+    watchOptions: {
+      ignored: /node_modules/
+    },
+    historyApiFallback: {
+      rewrites: [
+        { from: /\.html$/, to: '/' }
+      ]
+    },
+    overlay: false,
+    host,
+    contentBase: path.resolve(sourceDir, '.vuepress/public'),
+    before (app, server) {
+      ctx.pluginAPI.options.beforeDevServer.syncApply(app, server)
+    },
+    after (app, server) {
+      ctx.pluginAPI.options.afterDevServer.syncApply(app, server)
+    }
+  }, ctx.siteConfig.devServer || {})
+
+  WebpackDevServer.addDevServerEntrypoints(config, serverConfig)
+
   const compiler = webpack(config)
+  const server = new WebpackDevServer(compiler, serverConfig)
 
-  const nonExistentDir = path.resolve(__dirname, 'non-existent')
-  await serve({
-    // avoid project cwd from being served. Otherwise if the user has index.html
-    // in cwd it would break the server
-    content: [nonExistentDir],
-    compiler,
+  return {
+    server,
     host,
-    dev: { logLevel: 'warn' },
-    hot: {
-      port: port + 1,
-      logLevel: 'error'
-    },
-    logLevel: 'error',
     port,
-    open: cliOptions.open,
-    add: app => {
-      // apply plugin options to extend dev server.
-      ctx.pluginAPI.options.enhanceDevServer.syncApply(app)
-
-      const userPublic = path.resolve(sourceDir, '.vuepress/public')
-
-      // enable range request
-      app.use(range)
-
-      // respect base when serving static files...
-      if (fs.existsSync(userPublic)) {
-        app.use(mount(ctx.base, serveStatic(userPublic)))
-      }
-
-      app.use(convert(history({
-        rewrites: [
-          { from: /\.html$/, to: '/' }
-        ]
-      })))
-    }
-  })
+    ctx
+  }
 }
 
 function resolveHost (host) {
-  // webpack-serve hot updates doesn't work properly over 0.0.0.0 on Windows,
-  // but localhost does not allow visiting over network :/
-  const defaultHost = process.platform === 'win32' ? 'localhost' : '0.0.0.0'
+  const defaultHost = 'localhost'
   host = host || defaultHost
-  const displayHost = host === defaultHost && process.platform !== 'win32'
+  const displayHost = host === defaultHost
     ? 'localhost'
     : host
   return {
diff --git a/packages/@vuepress/core/lib/plugin-api/constants.js b/packages/@vuepress/core/lib/plugin-api/constants.js
index d9fee97d1a..e142975459 100644
--- a/packages/@vuepress/core/lib/plugin-api/constants.js
+++ b/packages/@vuepress/core/lib/plugin-api/constants.js
@@ -8,7 +8,6 @@ const PLUGIN_OPTION_META_MAP = {
   GENERATED: { name: 'generated', types: [Function], async: true },
   // options
   CHAIN_WEBPACK: { name: 'chainWebpack', types: [Function] },
-  ENHANCE_DEV_SERVER: { name: 'enhanceDevServer', types: [Function] },
   ENHANCE_APP_FILES: { name: 'enhanceAppFiles', types: [String, Object, Array, Function] },
   OUT_FILES: { name: 'outFiles', types: [Object] },
   EXTEND_PAGE_DATA: { name: 'extendPageData', types: [Function] },
@@ -20,7 +19,9 @@ const PLUGIN_OPTION_META_MAP = {
   GLOBAL_UI_COMPONENTS: { name: 'globalUIComponents', types: [String, Array] },
   DEFINE: { name: 'define', types: [Function, Object] },
   ALIAS: { name: 'alias', types: [Function, Object] },
-  EXTEND_CLI: { name: 'extendCli', types: [Function] }
+  EXTEND_CLI: { name: 'extendCli', types: [Function] },
+  BEFORE_DEV_SERVER: { name: 'beforeDevServer', types: [Function] },
+  AFTER_DEV_SERVER: { name: 'afterDevServer', types: [Function] }
 }
 
 const PLUGIN_OPTION_MAP = {}
diff --git a/packages/@vuepress/core/lib/plugin-api/index.js b/packages/@vuepress/core/lib/plugin-api/index.js
index c4aa89e4f9..69649f80e7 100644
--- a/packages/@vuepress/core/lib/plugin-api/index.js
+++ b/packages/@vuepress/core/lib/plugin-api/index.js
@@ -195,7 +195,6 @@ module.exports = class PluginAPI {
 
     // options
     chainWebpack,
-    enhanceDevServer,
     extendMarkdown,
     chainMarkdown,
     enhanceAppFiles,
@@ -207,7 +206,9 @@ module.exports = class PluginAPI {
     globalUIComponents,
     define,
     alias,
-    extendCli
+    extendCli,
+    beforeDevServer,
+    afterDevServer
   }) {
     const isInternalPlugin = pluginName.startsWith('@vuepress/internal-')
     logger[isInternalPlugin ? 'debug' : 'tip'](pluginLog(pluginName, shortcut))
@@ -218,7 +219,6 @@ module.exports = class PluginAPI {
       .registerOption(PLUGIN_OPTION_MAP.UPDATED.key, updated, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.GENERATED.key, generated, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.CHAIN_WEBPACK.key, chainWebpack, pluginName)
-      .registerOption(PLUGIN_OPTION_MAP.ENHANCE_DEV_SERVER.key, enhanceDevServer, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.EXTEND_MARKDOWN.key, extendMarkdown, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.CHAIN_MARKDOWN.key, chainMarkdown, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.EXTEND_PAGE_DATA.key, extendPageData, pluginName)
@@ -231,6 +231,8 @@ module.exports = class PluginAPI {
       .registerOption(PLUGIN_OPTION_MAP.DEFINE.key, define, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.ALIAS.key, alias, pluginName)
       .registerOption(PLUGIN_OPTION_MAP.EXTEND_CLI.key, extendCli, pluginName)
+      .registerOption(PLUGIN_OPTION_MAP.BEFORE_DEV_SERVER.key, beforeDevServer, pluginName)
+      .registerOption(PLUGIN_OPTION_MAP.AFTER_DEV_SERVER.key, afterDevServer, pluginName)
   }
 }
 
diff --git a/packages/@vuepress/core/lib/prepare/index.js b/packages/@vuepress/core/lib/prepare/index.js
index 96d308a0cc..7771f65f00 100644
--- a/packages/@vuepress/core/lib/prepare/index.js
+++ b/packages/@vuepress/core/lib/prepare/index.js
@@ -5,12 +5,14 @@
  */
 
 const AppContext = require('./AppContext')
+const { logger } = require('@vuepress/shared-utils')
 
 /**
  * Expose prepare.
  */
 
 module.exports = async function prepare (sourceDir, cliOptions, isProd) {
+  logger.wait('Extracting site metadata...')
   const appContext = AppContext.getInstance(sourceDir, cliOptions, isProd)
   await appContext.process()
   return appContext
diff --git a/packages/@vuepress/core/lib/webpack/createClientConfig.js b/packages/@vuepress/core/lib/webpack/createClientConfig.js
index 4481a46008..d107caaae1 100644
--- a/packages/@vuepress/core/lib/webpack/createClientConfig.js
+++ b/packages/@vuepress/core/lib/webpack/createClientConfig.js
@@ -54,6 +54,10 @@ module.exports = function createClientConfig (ctx) {
           mergeLonghand: false
         }
       }])
+  } else {
+    config
+      .plugin('hmr')
+      .use(require('webpack/lib/HotModuleReplacementPlugin'))
   }
 
   if (!env.isDebug) {
diff --git a/packages/@vuepress/core/package.json b/packages/@vuepress/core/package.json
index 340720ae9e..2aeafc418f 100644
--- a/packages/@vuepress/core/package.json
+++ b/packages/@vuepress/core/package.json
@@ -45,10 +45,6 @@
     "css-loader": "^0.28.11",
     "file-loader": "^1.1.11",
     "js-yaml": "^3.11.0",
-    "koa-connect": "^2.0.1",
-    "koa-mount": "^3.0.0",
-    "koa-range": "^0.3.0",
-    "koa-static": "^4.0.2",
     "lru-cache": "^5.1.1",
     "mini-css-extract-plugin": "0.4.4",
     "optimize-css-assets-webpack-plugin": "^4.0.0",
@@ -65,7 +61,7 @@
     "webpack": "^4.8.1",
     "webpack-chain": "^4.6.0",
     "webpack-merge": "^4.1.2",
-    "webpack-serve": "^1.0.2",
+    "webpack-dev-server": "^3.1.14",
     "webpackbar": "^2.6.1"
   },
   "engines": {
diff --git a/packages/docs/docs/plugin/option-api.md b/packages/docs/docs/plugin/option-api.md
index 9aff03baa6..a532f44c3f 100644
--- a/packages/docs/docs/plugin/option-api.md
+++ b/packages/docs/docs/plugin/option-api.md
@@ -132,42 +132,36 @@ module.exports = (options, context) => ({
 })
 ```
 
-## enhanceDevServer
+## beforeDevServer
 
 - Type: `Function`
 - Default: undefined
 
-Enhance the underlying [Koa](https://github.com/koajs/koa) app.
+Equivalent to [before](https://webpack.js.org/configuration/dev-server/#devserver-before) in [webpack-dev-server](https://github.com/webpack/webpack-dev-server). you can use it to define custom handlers before all middleware is executed:
 
-``` js
+```js
 module.exports = {
-  enhanceDevServer (app) {
-    // ...
+  // ...
+  beforeDevServer(app, server) {
+    app.get('/path/to/your/custom', function(req, res) {
+      res.json({ custom: 'response' })
+    })
   }
 }
 ```
 
-A simple plugin to create a sub public directory is as follows:
+## afterDevServer
 
-```js
-const path = require('path')
+- Type: `Function`
+- Default: undefined
 
-module.exports = (options, context) => {
-  const imagesAssetsPath = path.resolve(context.sourceDir, '.vuepress/images')
+Equivalent to [after](https://webpack.js.org/configuration/dev-server/#devserver-after) in [webpack-dev-server](https://github.com/webpack/webpack-dev-server). you can use it to execute custom middleware after all other middleware:
 
-  return {
-      // For development
-      enhanceDevServer (app) {
-        const mount = require('koa-mount')
-        const serveStatic = require('koa-static')
-        app.use(mount(path.join(context.base, 'images'), serveStatic(imagesAssetsPath)))
-      },
-
-      // For production
-      async generated () {
-        const { fs } = require('@vuepress/shared-utils')
-        await fs.copy(imagesAssetsPath, path.resolve(context.outDir, 'images'))
-      }
+```js
+module.exports = {
+  // ...
+  afterDevServer(app, server) {
+    // hacking now ...
   }
 }
 ```
diff --git a/packages/docs/docs/zh/plugin/option-api.md b/packages/docs/docs/zh/plugin/option-api.md
index ff305cf86f..57dd9c9576 100644
--- a/packages/docs/docs/zh/plugin/option-api.md
+++ b/packages/docs/docs/zh/plugin/option-api.md
@@ -136,42 +136,36 @@ module.exports = (options, context) => ({
 })
 ```
 
-## enhanceDevServer
+## beforeDevServer
 
 - 类型: `Function`
 - 默认值: undefined
 
-拓展 devServer 下层的 [Koa](https://github.com/koajs/koa) app：
+等同于 [webpack-dev-server](https://github.com/webpack/webpack-dev-server) 中的 [before](https://webpack.js.org/configuration/dev-server/#devserver-before) 选项，你可以使用它来自定义你的 devServer，如：
 
-``` js
+```js
 module.exports = {
-  enhanceDevServer (app) {
-    // ...
+  // ...
+  beforeDevServer(app, server) {
+    app.get('/path/to/your/custom', function(req, res) {
+      res.json({ custom: 'response' })
+    })
   }
 }
 ```
 
-一个简单的创建子 public 目录的插件如下：
+## afterDevServer
 
-```js
-const path = require('path')
+- 类型: `Function`
+- 默认值: undefined
 
-module.exports = (options, context) => {
-  const imagesAssetsPath = path.resolve(context.sourceDir, '.vuepress/images')
+等同于 [webpack-dev-server](https://github.com/webpack/webpack-dev-server) 中的 [after](https://webpack.js.org/configuration/dev-server/#devserver-after)，你可以用其在所有中间件的最后去执行一些自定义的中间件：
 
-  return {
-      // For development
-      enhanceDevServer (app) {
-        const mount = require('koa-mount')
-        const serveStatic = require('koa-static')
-        app.use(mount(path.join(context.base, 'images'), serveStatic(imagesAssetsPath)))
-      },
-
-      // For production
-      async generated () {
-        const { fs } = require('@vuepress/shared-utils')
-        await fs.copy(imagesAssetsPath, path.resolve(context.outDir, 'images'))
-      }
+```js
+module.exports = {
+  // ...
+  afterDevServer(app, server) {
+    // hacking now ...
   }
 }
 ```
diff --git a/packages/vuepress/vuepress.js b/packages/vuepress/cli.js
similarity index 100%
rename from packages/vuepress/vuepress.js
rename to packages/vuepress/cli.js
diff --git a/packages/vuepress/index.js b/packages/vuepress/index.js
new file mode 100644
index 0000000000..196d088d87
--- /dev/null
+++ b/packages/vuepress/index.js
@@ -0,0 +1 @@
+module.exports = require('@vuepress/core')
diff --git a/packages/vuepress/lib/handleUnknownCommand.js b/packages/vuepress/lib/handleUnknownCommand.js
index cc20a2aed7..6a12788057 100644
--- a/packages/vuepress/lib/handleUnknownCommand.js
+++ b/packages/vuepress/lib/handleUnknownCommand.js
@@ -39,7 +39,7 @@ module.exports = async function (cli, options) {
 
     if (sourceDir) {
       context = await prepare(sourceDir, options)
-      context.pluginAPI.options.extendCli.apply(cli)
+      context.pluginAPI.options.extendCli.apply(cli, context)
     }
 
     logger.setOptions({ logLevel: 3 })
@@ -107,7 +107,7 @@ function registerUnknownCommands (cli, options) {
           ...options,
           ...commandoptions
         }, false /* isProd */)
-        await context.pluginAPI.options.extendCli.apply(subCli)
+        await context.pluginAPI.options.extendCli.apply(subCli, context)
       },
       async afterParse (subCli) {
         if (!subCli.matchedCommand) {
diff --git a/packages/vuepress/package.json b/packages/vuepress/package.json
index 4f1c7d9b06..616d209edd 100644
--- a/packages/vuepress/package.json
+++ b/packages/vuepress/package.json
@@ -2,7 +2,7 @@
   "name": "vuepress",
   "version": "1.0.0-alpha.32",
   "description": "Minimalistic doc generator with Vue component based layout system",
-  "main": "vuepress.js",
+  "main": "index.js",
   "repository": {
     "type": "git",
     "url": "git+https://github.com/vuejs/vuepress.git"
@@ -13,7 +13,7 @@
     "generator"
   ],
   "bin": {
-    "vuepress": "vuepress.js"
+    "vuepress": "cli.js"
   },
   "author": "Evan You",
   "maintainers": [
diff --git a/yarn.lock b/yarn.lock
index bbe4964d31..64877e1baa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1195,22 +1195,6 @@
   dependencies:
     any-observable "^0.3.0"
 
-"@shellscape/koa-send@^4.1.0":
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/@shellscape/koa-send/-/koa-send-4.1.3.tgz#1a7c8df21f63487e060b7bfd8ed82e1d3c4ae0b0"
-  dependencies:
-    debug "^2.6.3"
-    http-errors "^1.6.1"
-    mz "^2.6.0"
-    resolve-path "^1.3.3"
-
-"@shellscape/koa-static@^4.0.4":
-  version "4.0.5"
-  resolved "https://registry.yarnpkg.com/@shellscape/koa-static/-/koa-static-4.0.5.tgz#b329b55bfd41056a6981c584ae6bace30b5b6b3b"
-  dependencies:
-    "@shellscape/koa-send" "^4.1.0"
-    debug "^2.6.8"
-
 "@types/escape-html@^0.0.20":
   version "0.0.20"
   resolved "https://registry.yarnpkg.com/@types/escape-html/-/escape-html-0.0.20.tgz#cae698714dd61ebee5ab3f2aeb9a34ba1011735a"
@@ -1444,30 +1428,6 @@
     "@webassemblyjs/wast-parser" "1.5.13"
     long "^3.2.0"
 
-"@webpack-contrib/config-loader@^1.1.1":
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/@webpack-contrib/config-loader/-/config-loader-1.1.3.tgz#6cce904cabfd880203db600207fdbf64f4744fd7"
-  dependencies:
-    "@webpack-contrib/schema-utils" "^1.0.0-beta.0"
-    chalk "^2.1.0"
-    cosmiconfig "^5.0.2"
-    loud-rejection "^1.6.0"
-    merge-options "^1.0.1"
-    minimist "^1.2.0"
-    resolve "^1.6.0"
-    webpack-log "^1.1.2"
-
-"@webpack-contrib/schema-utils@^1.0.0-beta.0":
-  version "1.0.0-beta.0"
-  resolved "https://registry.yarnpkg.com/@webpack-contrib/schema-utils/-/schema-utils-1.0.0-beta.0.tgz#bf9638c9464d177b48209e84209e23bee2eb4f65"
-  dependencies:
-    ajv "^6.1.0"
-    ajv-keywords "^3.1.0"
-    chalk "^2.3.2"
-    strip-ansi "^4.0.0"
-    text-table "^0.2.0"
-    webpack-log "^1.1.2"
-
 JSONStream@^1.0.4:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.3.tgz#27b4b8fbbfeab4e71bcf551e7f27be8d952239bf"
@@ -1494,7 +1454,7 @@ abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
-accepts@^1.2.2:
+accepts@~1.3.4, accepts@~1.3.5:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
   dependencies:
@@ -1622,11 +1582,9 @@ amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
 
-ansi-align@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-align/-/ansi-align-2.0.0.tgz#c36aeccba563b89ceb556f3690f0b1d9e3547f7f"
-  dependencies:
-    string-width "^2.0.0"
+ansi-colors@^3.0.0:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.3.tgz#57d35b8686e851e2cc04c403f1c00203976a1813"
 
 ansi-escapes@^1.0.0:
   version "1.4.0"
@@ -1636,6 +1594,10 @@ ansi-escapes@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.1.0.tgz#f73207bb81207d75fd6c83f125af26eea378ca30"
 
+ansi-html@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/ansi-html/-/ansi-html-0.0.7.tgz#813584021962a9e9e6fd039f940d12f56ca7859e"
+
 ansi-regex@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
@@ -1658,10 +1620,6 @@ any-observable@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.3.0.tgz#af933475e5806a67d0d7df090dd5e8bef65d119b"
 
-any-promise@^1.0.0, any-promise@^1.1.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/any-promise/-/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
-
 anymatch@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
@@ -1687,10 +1645,6 @@ aproba@^1.0.3, aproba@^1.1.1, aproba@^1.1.2:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-2.0.0.tgz#52520b8ae5b569215b354efc0caa3fe1e45a8adc"
 
-arch@^2.1.0:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/arch/-/arch-2.1.1.tgz#8f5c2731aa35a30929221bb0640eed65175ec84e"
-
 are-we-there-yet@~1.1.2:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
@@ -1734,6 +1688,14 @@ array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
 
+array-flatten@1.1.1:
+  version "1.1.1"
+  resolved "http://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+
+array-flatten@^2.1.0:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-2.1.2.tgz#24ef80a28c1a893617e2149b0c6d0d788293b099"
+
 array-ify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
@@ -2085,6 +2047,10 @@ base@^0.11.1:
     mixin-deep "^1.2.0"
     pascalcase "^0.1.1"
 
+batch@0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
+
 bcrypt-pbkdf@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz#a4301d389b6a43f9b67ff3ca11a3f6637e360e9e"
@@ -2127,22 +2093,36 @@ bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
 
+body-parser@1.18.3:
+  version "1.18.3"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.3.tgz#5b292198ffdd553b3a0f20ded0592b956955c8b4"
+  dependencies:
+    bytes "3.0.0"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "~1.6.3"
+    iconv-lite "0.4.23"
+    on-finished "~2.3.0"
+    qs "6.5.2"
+    raw-body "2.3.3"
+    type-is "~1.6.16"
+
+bonjour@^3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/bonjour/-/bonjour-3.5.0.tgz#8e890a183d8ee9a2393b3844c691a42bcf7bc9f5"
+  dependencies:
+    array-flatten "^2.1.0"
+    deep-equal "^1.0.1"
+    dns-equal "^1.0.0"
+    dns-txt "^2.0.2"
+    multicast-dns "^6.0.1"
+    multicast-dns-service-types "^1.1.0"
+
 boolbase@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
 
-boxen@^1.2.1:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/boxen/-/boxen-1.3.0.tgz#55c6c39a8ba58d9c61ad22cd877532deb665a20b"
-  dependencies:
-    ansi-align "^2.0.0"
-    camelcase "^4.0.0"
-    chalk "^2.0.1"
-    cli-boxes "^1.0.0"
-    string-width "^2.0.0"
-    term-size "^1.2.0"
-    widest-line "^2.0.0"
-
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -2282,6 +2262,10 @@ buffer-from@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.0.tgz#87fcaa3a298358e0ade6e442cfce840740d1ad04"
 
+buffer-indexof@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/buffer-indexof/-/buffer-indexof-1.1.1.tgz#52fabcc6a606d1a00302802648ef68f639da268c"
+
 buffer-xor@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
@@ -2314,6 +2298,10 @@ byte-size@^4.0.3:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/byte-size/-/byte-size-4.0.4.tgz#29d381709f41aae0d89c631f1c81aec88cd40b23"
 
+bytes@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
+
 cac@^6.3.9:
   version "6.3.9"
   resolved "https://registry.yarnpkg.com/cac/-/cac-6.3.9.tgz#0cdf3f2d3a7d3fb71ab89c476c73e472084859a2"
@@ -2426,7 +2414,7 @@ camelcase@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
 
-camelcase@^4.0.0, camelcase@^4.1.0:
+camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
 
@@ -2461,10 +2449,6 @@ capture-exit@^1.2.0:
   dependencies:
     rsvp "^3.3.3"
 
-capture-stack-trace@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/capture-stack-trace/-/capture-stack-trace-1.0.0.tgz#4a6fa07399c26bba47f0b2496b4d0fb408c5550d"
-
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -2486,7 +2470,7 @@ chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.3.1, chalk@^2.3.2, chalk@^2.4.1:
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.1, chalk@^2.3.2, chalk@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
   dependencies:
@@ -2502,7 +2486,7 @@ chardet@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
 
-chokidar@^2.0.2, chokidar@^2.0.3:
+chokidar@^2.0.0, chokidar@^2.0.2, chokidar@^2.0.3:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-2.0.4.tgz#356ff4e2b0e8e43e322d18a372460bbcf3accd26"
   dependencies:
@@ -2571,10 +2555,6 @@ clean-css@4.1.x:
   dependencies:
     source-map "0.5.x"
 
-cli-boxes@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/cli-boxes/-/cli-boxes-1.0.0.tgz#4fa917c3e59c94a004cd61f8ee509da651687143"
-
 cli-cursor@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
@@ -2610,13 +2590,6 @@ clipboard@^2.0.0:
     select "^1.1.2"
     tiny-emitter "^2.0.0"
 
-clipboardy@^1.2.2:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/clipboardy/-/clipboardy-1.2.3.tgz#0526361bf78724c1f20be248d428e365433c07ef"
-  dependencies:
-    arch "^2.1.0"
-    execa "^0.8.0"
-
 cliui@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
@@ -2753,6 +2726,24 @@ component-emitter@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
+compressible@~2.0.14:
+  version "2.0.15"
+  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.15.tgz#857a9ab0a7e5a07d8d837ed43fe2defff64fe212"
+  dependencies:
+    mime-db ">= 1.36.0 < 2"
+
+compression@^1.5.2:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/compression/-/compression-1.7.3.tgz#27e0e176aaf260f7f2c2813c3e440adb9f1993db"
+  dependencies:
+    accepts "~1.3.5"
+    bytes "3.0.0"
+    compressible "~2.0.14"
+    debug "2.6.9"
+    on-headers "~1.0.1"
+    safe-buffer "5.1.2"
+    vary "~1.1.2"
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -2788,18 +2779,7 @@ config-chain@~1.1.5:
     ini "^1.3.4"
     proto-list "~1.2.1"
 
-configstore@^3.0.0:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/configstore/-/configstore-3.1.2.tgz#c6f25defaeef26df12dd33414b001fe81a543f8f"
-  dependencies:
-    dot-prop "^4.1.0"
-    graceful-fs "^4.1.2"
-    make-dir "^1.0.0"
-    unique-string "^1.0.0"
-    write-file-atomic "^2.0.0"
-    xdg-basedir "^3.0.0"
-
-connect-history-api-fallback@^1.5.0:
+connect-history-api-fallback@^1.3.0, connect-history-api-fallback@^1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/connect-history-api-fallback/-/connect-history-api-fallback-1.5.0.tgz#b06873934bc5e344fef611a196a6faae0aee015a"
 
@@ -2832,11 +2812,11 @@ constants-browserify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
 
-content-disposition@~0.5.0:
+content-disposition@0.5.2:
   version "0.5.2"
-  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
+  resolved "http://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
 
-content-type@^1.0.0:
+content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
 
@@ -3058,12 +3038,13 @@ convert-source-map@^1.1.0, convert-source-map@^1.4.0, convert-source-map@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
 
-cookies@~0.7.0:
-  version "0.7.1"
-  resolved "https://registry.yarnpkg.com/cookies/-/cookies-0.7.1.tgz#7c8a615f5481c61ab9f16c833731bcb8f663b99b"
-  dependencies:
-    depd "~1.1.1"
-    keygrip "~1.0.2"
+cookie-signature@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
+
+cookie@0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 
 copy-concurrently@^1.0.0:
   version "1.0.5"
@@ -3125,12 +3106,6 @@ create-ecdh@^4.0.0:
     bn.js "^4.1.0"
     elliptic "^6.0.0"
 
-create-error-class@^3.0.0:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/create-error-class/-/create-error-class-3.0.2.tgz#06be7abef947a3f14a30fd610671d401bca8b7b6"
-  dependencies:
-    capture-stack-trace "^1.0.0"
-
 create-hash@^1.1.0, create-hash@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
@@ -3186,10 +3161,6 @@ crypto-browserify@^3.11.0:
     randombytes "^2.0.0"
     randomfill "^1.0.3"
 
-crypto-random-string@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
-
 css-color-names@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
@@ -3315,12 +3286,6 @@ cyclist@~0.2.2:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-0.2.2.tgz#1b33792e11e914a2fd6d6ed6447464444e5fa640"
 
-d@1:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/d/-/d-1.0.0.tgz#754bb5bfe55451da69a58b94d45f4c5b0462d58f"
-  dependencies:
-    es5-ext "^0.10.9"
-
 dargs@^4.0.1:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/dargs/-/dargs-4.1.0.tgz#03a9dbb4b5c2f139bf14ae53f0b8a2a6a86f4e17"
@@ -3357,18 +3322,30 @@ de-indent@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
 
-debug@*, debug@3.1.0, debug@^3.1.0:
+debug@*, debug@3.1.0, 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"
 
-debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.1, debug@^2.6.3, debug@^2.6.8, debug@^2.6.9:
+debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
     ms "2.0.0"
 
+debug@^3.2.5:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
+  dependencies:
+    ms "^2.1.1"
+
+debug@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+  dependencies:
+    ms "^2.1.1"
+
 debuglog@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debuglog/-/debuglog-1.0.1.tgz#aa24ffb9ac3df9a2351837cfb2d279360cd78492"
@@ -3384,6 +3361,12 @@ decamelize@^1.0.0, decamelize@^1.1.0, decamelize@^1.1.1, decamelize@^1.1.2, deca
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
+decamelize@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-2.0.0.tgz#656d7bbc8094c4c788ea53c5840908c9c7d063c7"
+  dependencies:
+    xregexp "4.0.0"
+
 decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
@@ -3392,7 +3375,7 @@ dedent@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
 
-deep-equal@~1.0.1:
+deep-equal@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
 
@@ -3408,6 +3391,13 @@ deepmerge@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/deepmerge/-/deepmerge-1.5.2.tgz#10499d868844cdad4fee0842df8c7f6f0c95a753"
 
+default-gateway@^2.6.0:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/default-gateway/-/default-gateway-2.7.2.tgz#b7ef339e5e024b045467af403d50348db4642d0f"
+  dependencies:
+    execa "^0.10.0"
+    ip-regex "^2.1.0"
+
 default-require-extensions@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/default-require-extensions/-/default-require-extensions-2.0.0.tgz#f5f8fbb18a7d6d50b21f641f649ebb522cfe24f7"
@@ -3462,6 +3452,17 @@ del@^2.0.2:
     pinkie-promise "^2.0.0"
     rimraf "^2.2.8"
 
+del@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/del/-/del-3.0.0.tgz#53ecf699ffcbcb39637691ab13baf160819766e5"
+  dependencies:
+    globby "^6.1.0"
+    is-path-cwd "^1.0.0"
+    is-path-in-cwd "^1.0.0"
+    p-map "^1.1.1"
+    pify "^3.0.0"
+    rimraf "^2.2.8"
+
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
@@ -3474,7 +3475,7 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
-depd@^1.1.0, depd@~1.1.1, depd@~1.1.2:
+depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
 
@@ -3485,7 +3486,7 @@ des.js@^1.0.0:
     inherits "^2.0.1"
     minimalistic-assert "^1.0.0"
 
-destroy@^1.0.3:
+destroy@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
 
@@ -3507,6 +3508,10 @@ detect-newline@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/detect-newline/-/detect-newline-2.1.0.tgz#f41f1c10be4b00e87b5f13da680759f2c5bfd3e2"
 
+detect-node@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.0.4.tgz#014ee8f8f669c5c58023da64b8179c083a28c46c"
+
 dezalgo@^1.0.0:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/dezalgo/-/dezalgo-1.0.3.tgz#7f742de066fc748bc8db820569dddce49bf0d456"
@@ -3537,6 +3542,23 @@ dir-glob@^2.0.0:
     arrify "^1.0.1"
     path-type "^3.0.0"
 
+dns-equal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/dns-equal/-/dns-equal-1.0.0.tgz#b39e7f1da6eb0a75ba9c17324b34753c47e0654d"
+
+dns-packet@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/dns-packet/-/dns-packet-1.3.1.tgz#12aa426981075be500b910eedcd0b47dd7deda5a"
+  dependencies:
+    ip "^1.1.0"
+    safe-buffer "^5.0.1"
+
+dns-txt@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/dns-txt/-/dns-txt-2.0.2.tgz#b91d806f5d27188e4ab3e7d107d881a1cc4642b6"
+  dependencies:
+    buffer-indexof "^1.0.0"
+
 docsearch.js@^2.5.2:
   version "2.5.2"
   resolved "https://registry.yarnpkg.com/docsearch.js/-/docsearch.js-2.5.2.tgz#1a3521c92e5f252cc522c57357ef1c47b945b381"
@@ -3612,16 +3634,12 @@ dot-prop@^3.0.0:
   dependencies:
     is-obj "^1.0.0"
 
-dot-prop@^4.1.0, dot-prop@^4.1.1, dot-prop@^4.2.0:
+dot-prop@^4.1.1, dot-prop@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-4.2.0.tgz#1f19e0c2e1aa0e32797c49799f2837ac6af69c57"
   dependencies:
     is-obj "^1.0.0"
 
-duplexer3@^0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
-
 duplexer@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
@@ -3687,6 +3705,10 @@ emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
 
+encodeurl@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+
 encoding@^0.1.11:
   version "0.1.12"
   resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
@@ -3740,10 +3762,6 @@ error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-error-inject@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/error-inject/-/error-inject-1.0.0.tgz#e2b3d91b54aed672f309d950d154850fa11d4f37"
-
 es-abstract@^1.5.1:
   version "1.12.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.12.0.tgz#9dbbdd27c6856f0001421ca18782d786bf8a6165"
@@ -3762,22 +3780,6 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
-es5-ext@^0.10.35, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.45"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.45.tgz#0bfdf7b473da5919d5adf3bd25ceb754fccc3653"
-  dependencies:
-    es6-iterator "~2.0.3"
-    es6-symbol "~3.1.1"
-    next-tick "1"
-
-es6-iterator@~2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/es6-iterator/-/es6-iterator-2.0.3.tgz#a7de889141a05a94b0854403b2d0a0fbfa98f3b7"
-  dependencies:
-    d "1"
-    es5-ext "^0.10.35"
-    es6-symbol "^3.1.1"
-
 es6-promise@^4.0.3:
   version "4.2.5"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.5.tgz#da6d0d5692efb461e082c14817fe2427d8f5d054"
@@ -3792,14 +3794,7 @@ es6-promisify@^5.0.0:
   dependencies:
     es6-promise "^4.0.3"
 
-es6-symbol@^3.1.1, es6-symbol@~3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/es6-symbol/-/es6-symbol-3.1.1.tgz#bf00ef4fdab6ba1b46ecb7b629b4c7ed5715cc77"
-  dependencies:
-    d "1"
-    es5-ext "~0.10.14"
-
-escape-html@^1.0.3, escape-html@~1.0.1:
+escape-html@^1.0.3, escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
 
@@ -3942,14 +3937,28 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
+etag@~1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
+
 eve-raphael@0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/eve-raphael/-/eve-raphael-0.5.0.tgz#17c754b792beef3fa6684d79cf5a47c63c4cda30"
 
+eventemitter3@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
+
 events@^1.0.0, events@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
 
+eventsource@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
+  dependencies:
+    original "^1.0.0"
+
 evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/evp_bytestokey/-/evp_bytestokey-1.0.3.tgz#7fcbdb198dc71959432efe13842684e0525acb02"
@@ -4066,6 +4075,41 @@ expect@^23.5.0:
     jest-message-util "^23.4.0"
     jest-regex-util "^23.3.0"
 
+express@^4.16.2:
+  version "4.16.4"
+  resolved "https://registry.yarnpkg.com/express/-/express-4.16.4.tgz#fddef61926109e24c515ea97fd2f1bdbf62df12e"
+  dependencies:
+    accepts "~1.3.5"
+    array-flatten "1.1.1"
+    body-parser "1.18.3"
+    content-disposition "0.5.2"
+    content-type "~1.0.4"
+    cookie "0.3.1"
+    cookie-signature "1.0.6"
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "1.1.1"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.2"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.4"
+    qs "6.5.2"
+    range-parser "~1.2.0"
+    safe-buffer "5.1.2"
+    send "0.16.2"
+    serve-static "1.13.2"
+    setprototypeof "1.1.0"
+    statuses "~1.4.0"
+    type-is "~1.6.16"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
+
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -4163,6 +4207,18 @@ fastparse@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/fastparse/-/fastparse-1.1.1.tgz#d1e2643b38a94d7583b479060e6c4affc94071f8"
 
+faye-websocket@^0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/faye-websocket/-/faye-websocket-0.10.0.tgz#4e492f8d04dfb6f89003507f6edbf2d501e7c6f4"
+  dependencies:
+    websocket-driver ">=0.5.1"
+
+faye-websocket@~0.11.1:
+  version "0.11.1"
+  resolved "https://registry.yarnpkg.com/faye-websocket/-/faye-websocket-0.11.1.tgz#f0efe18c4f56e4f40afc7e06c719fd5ee6188f38"
+  dependencies:
+    websocket-driver ">=0.5.1"
+
 fb-watchman@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fb-watchman/-/fb-watchman-2.0.0.tgz#54e9abf7dfa2f26cd9b1636c588c1afc05de5d58"
@@ -4230,6 +4286,18 @@ fill-range@^4.0.0:
     repeat-string "^1.6.1"
     to-regex-range "^2.1.0"
 
+finalhandler@1.1.1:
+  version "1.1.1"
+  resolved "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz#eebf4ed840079c83f4249038c9d703008301b105"
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.2"
+    statuses "~1.4.0"
+    unpipe "~1.0.0"
+
 find-babel-config@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/find-babel-config/-/find-babel-config-1.1.0.tgz#acc01043a6749fec34429be6b64f542ebb5d6355"
@@ -4298,6 +4366,12 @@ flush-write-stream@^1.0.0:
     inherits "^2.0.1"
     readable-stream "^2.0.4"
 
+follow-redirects@^1.0.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.6.0.tgz#d12452c031e8c67eb6637d861bfc7a8090167933"
+  dependencies:
+    debug "=3.1.0"
+
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -4324,13 +4398,17 @@ form-data@~2.3.1:
     combined-stream "1.0.6"
     mime-types "^2.1.12"
 
+forwarded@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
+
 fragment-cache@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
   dependencies:
     map-cache "^0.2.2"
 
-fresh@^0.5.2:
+fresh@0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
 
@@ -4596,12 +4674,6 @@ glob@^7.1.3:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-global-dirs@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/global-dirs/-/global-dirs-0.1.1.tgz#b319c0dd4607f353f3be9cca4c72fc148c49f445"
-  dependencies:
-    ini "^1.3.4"
-
 global@^4.3.2:
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/global/-/global-4.3.2.tgz#e76989268a6c74c38908b1305b10fc0e394e9d0f"
@@ -4628,6 +4700,16 @@ globby@^5.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+globby@^6.1.0:
+  version "6.1.0"
+  resolved "http://registry.npmjs.org/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
+  dependencies:
+    array-union "^1.0.1"
+    glob "^7.0.3"
+    object-assign "^4.0.1"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
 globby@^7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/globby/-/globby-7.1.1.tgz#fb2ccff9401f8600945dfada97440cca972b8680"
@@ -4657,22 +4739,6 @@ good-listener@^1.2.2:
   dependencies:
     delegate "^3.1.2"
 
-got@^6.7.1:
-  version "6.7.1"
-  resolved "https://registry.yarnpkg.com/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
-  dependencies:
-    create-error-class "^3.0.0"
-    duplexer3 "^0.1.4"
-    get-stream "^3.0.0"
-    is-redirect "^1.0.0"
-    is-retry-allowed "^1.0.0"
-    is-stream "^1.0.0"
-    lowercase-keys "^1.0.0"
-    safe-buffer "^5.0.1"
-    timed-out "^4.0.0"
-    unzip-response "^2.0.1"
-    url-parse-lax "^1.0.0"
-
 graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
@@ -4690,6 +4756,10 @@ growly@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/growly/-/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
 
+handle-thing@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/handle-thing/-/handle-thing-2.0.0.tgz#0e039695ff50c93fc288557d696f3c1dc6776754"
+
 handlebars@^4.0.2, handlebars@^4.0.3:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
@@ -4818,6 +4888,15 @@ hosted-git-info@^2.1.4, hosted-git-info@^2.6.0:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.7.1.tgz#97f236977bd6e125408930ff6de3eec6281ec047"
 
+hpack.js@^2.1.6:
+  version "2.1.6"
+  resolved "https://registry.yarnpkg.com/hpack.js/-/hpack.js-2.1.6.tgz#87774c0949e513f42e84575b3c45681fade2a0b2"
+  dependencies:
+    inherits "^2.0.1"
+    obuf "^1.0.0"
+    readable-stream "^2.0.1"
+    wbuf "^1.1.0"
+
 html-comment-regex@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/html-comment-regex/-/html-comment-regex-1.1.1.tgz#668b93776eaae55ebde8f3ad464b307a4963625e"
@@ -4828,6 +4907,10 @@ html-encoding-sniffer@^1.0.2:
   dependencies:
     whatwg-encoding "^1.0.1"
 
+html-entities@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/html-entities/-/html-entities-1.2.1.tgz#0df29351f0721163515dfb9e5543e5f6eed5162f"
+
 html-minifier@^3.2.3:
   version "3.5.16"
   resolved "https://registry.yarnpkg.com/html-minifier/-/html-minifier-3.5.16.tgz#39f5aabaf78bdfc057fe67334226efd7f3851175"
@@ -4849,18 +4932,15 @@ htmlparser2@~3.3.0:
     domutils "1.1"
     readable-stream "1.0"
 
-http-assert@^1.1.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/http-assert/-/http-assert-1.3.0.tgz#a31a5cf88c873ecbb5796907d4d6f132e8c01e4a"
-  dependencies:
-    deep-equal "~1.0.1"
-    http-errors "~1.6.1"
-
 http-cache-semantics@^3.8.1:
   version "3.8.1"
   resolved "https://registry.yarnpkg.com/http-cache-semantics/-/http-cache-semantics-3.8.1.tgz#39b0e16add9b605bf0a9ef3d9daaf4843b4cacd2"
 
-http-errors@^1.2.8, http-errors@^1.6.1, http-errors@~1.6.1, http-errors@~1.6.2:
+http-deceiver@^1.2.7:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/http-deceiver/-/http-deceiver-1.2.7.tgz#fa7168944ab9a519d337cb0bec7284dc3e723d87"
+
+http-errors@1.6.3, http-errors@~1.6.2, http-errors@~1.6.3:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
   dependencies:
@@ -4869,6 +4949,10 @@ http-errors@^1.2.8, http-errors@^1.6.1, http-errors@~1.6.1, http-errors@~1.6.2:
     setprototypeof "1.1.0"
     statuses ">= 1.4.0 < 2"
 
+http-parser-js@>=0.4.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.5.0.tgz#d65edbede84349d0dc30320815a15d39cc3cbbd8"
+
 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"
@@ -4876,6 +4960,23 @@ http-proxy-agent@^2.1.0:
     agent-base "4"
     debug "3.1.0"
 
+http-proxy-middleware@~0.18.0:
+  version "0.18.0"
+  resolved "http://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-0.18.0.tgz#0987e6bb5a5606e5a69168d8f967a87f15dd8aab"
+  dependencies:
+    http-proxy "^1.16.2"
+    is-glob "^4.0.0"
+    lodash "^4.17.5"
+    micromatch "^3.1.9"
+
+http-proxy@^1.16.2:
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.17.0.tgz#7ad38494658f84605e2f6db4436df410f4e5be9a"
+  dependencies:
+    eventemitter3 "^3.0.0"
+    follow-redirects "^1.0.0"
+    requires-port "^1.0.0"
+
 http-signature@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.2.0.tgz#9aecd925114772f3d95b65a60abb8f7c18fbace1"
@@ -4905,7 +5006,7 @@ iconv-lite@0.4.19:
   version "0.4.19"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
 
-iconv-lite@^0.4.17, iconv-lite@^0.4.4:
+iconv-lite@0.4.23, iconv-lite@^0.4.17, iconv-lite@^0.4.4:
   version "0.4.23"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
   dependencies:
@@ -4965,10 +5066,6 @@ import-from@^2.1.0:
   dependencies:
     resolve-from "^3.0.0"
 
-import-lazy@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/import-lazy/-/import-lazy-2.1.0.tgz#05698e3d45c88e8d7e9d92cb0584e77f096f3e43"
-
 import-local@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/import-local/-/import-local-1.0.0.tgz#5e4ffdc03f4fe6c009c6729beb29631c2f8227bc"
@@ -4976,6 +5073,13 @@ import-local@^1.0.0:
     pkg-dir "^2.0.0"
     resolve-cwd "^2.0.0"
 
+import-local@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/import-local/-/import-local-2.0.0.tgz#55070be38a5993cf18ef6db7e961f5bee5c5a09d"
+  dependencies:
+    pkg-dir "^3.0.0"
+    resolve-cwd "^2.0.0"
+
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
@@ -5067,6 +5171,13 @@ inquirer@^6.2.0:
     strip-ansi "^4.0.0"
     through "^2.3.6"
 
+internal-ip@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/internal-ip/-/internal-ip-3.0.1.tgz#df5c99876e1d2eb2ea2d74f520e3f669a00ece27"
+  dependencies:
+    default-gateway "^2.6.0"
+    ipaddr.js "^1.5.2"
+
 invariant@^2.2.0, invariant@^2.2.2, invariant@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
@@ -5081,10 +5192,22 @@ invert-kv@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
 
-ip@^1.1.5:
+ip-regex@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/ip-regex/-/ip-regex-2.1.0.tgz#fa78bf5d2e6913c911ce9f819ee5146bb6d844e9"
+
+ip@^1.1.0, ip@^1.1.5:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/ip/-/ip-1.1.5.tgz#bdded70114290828c0a039e72ef25f5aaec4354a"
 
+ipaddr.js@1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.0.tgz#eaa33d6ddd7ace8f7f6fe0c9ca0440e706738b1e"
+
+ipaddr.js@^1.5.2:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.1.tgz#fa4b79fa47fd3def5e3b159825161c0a519c9427"
+
 is-absolute-url@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-absolute-url/-/is-absolute-url-2.1.0.tgz#50530dfb84fcc9aa7dbe7852e83a37b93b9f2aa6"
@@ -5215,10 +5338,6 @@ is-generator-fn@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-1.0.0.tgz#969d49e1bb3329f6bb7f09089be26578b2ddd46a"
 
-is-generator-function@^1.0.3:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.7.tgz#d2132e529bb0000a7f80794d4bdf5cd5e5813522"
-
 is-glob@^2.0.0, is-glob@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
@@ -5237,17 +5356,6 @@ is-glob@^4.0.0:
   dependencies:
     is-extglob "^2.1.1"
 
-is-installed-globally@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/is-installed-globally/-/is-installed-globally-0.1.0.tgz#0dfd98f5a9111716dd535dda6492f67bf3d25a80"
-  dependencies:
-    global-dirs "^0.1.0"
-    is-path-inside "^1.0.0"
-
-is-npm@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-npm/-/is-npm-1.0.0.tgz#f2fb63a65e4905b406c86072765a1a4dc793b9f4"
-
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -5294,7 +5402,7 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
-is-plain-obj@^1.0.0, is-plain-obj@^1.1, is-plain-obj@^1.1.0:
+is-plain-obj@^1.0.0, is-plain-obj@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
 
@@ -5316,10 +5424,6 @@ is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
 
-is-redirect@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/is-redirect/-/is-redirect-1.0.0.tgz#1d03dded53bd8db0f30c26e4f95d36fc7c87dc24"
-
 is-regex@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
@@ -5334,11 +5438,7 @@ is-resolvable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
 
-is-retry-allowed@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
-
-is-stream@^1.0.0, is-stream@^1.1.0:
+is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
 
@@ -5909,6 +6009,10 @@ 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"
 
+json3@^3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
+
 json5@2.x:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/json5/-/json5-2.1.0.tgz#e7a0c62c48285c628d20a10b85c89bb807c32850"
@@ -5938,10 +6042,6 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
-keygrip@~1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/keygrip/-/keygrip-1.0.2.tgz#ad3297c557069dea8bcfe7a4fa491b75c5ddeb91"
-
 killable@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/killable/-/killable-1.0.0.tgz#da8b84bd47de5395878f95d64d02f2449fe05e6b"
@@ -5970,99 +6070,6 @@ kleur@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-2.0.1.tgz#7cc64b0d188d0dcbc98bdcdfdda2cc10619ddce8"
 
-koa-compose@^3.0.0, koa-compose@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/koa-compose/-/koa-compose-3.2.1.tgz#a85ccb40b7d986d8e5a345b3a1ace8eabcf54de7"
-  dependencies:
-    any-promise "^1.1.0"
-
-koa-compose@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/koa-compose/-/koa-compose-4.1.0.tgz#507306b9371901db41121c812e923d0d67d3e877"
-
-koa-connect@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/koa-connect/-/koa-connect-2.0.1.tgz#2acad159c33862de1d73aa4562a48de13f137c0f"
-
-koa-convert@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/koa-convert/-/koa-convert-1.2.0.tgz#da40875df49de0539098d1700b50820cebcd21d0"
-  dependencies:
-    co "^4.6.0"
-    koa-compose "^3.0.0"
-
-koa-is-json@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/koa-is-json/-/koa-is-json-1.0.0.tgz#273c07edcdcb8df6a2c1ab7d59ee76491451ec14"
-
-koa-mount@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/koa-mount/-/koa-mount-3.0.0.tgz#08cab3b83d31442ed8b7e75c54b1abeb922ec197"
-  dependencies:
-    debug "^2.6.1"
-    koa-compose "^3.2.1"
-
-koa-range@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/koa-range/-/koa-range-0.3.0.tgz#3588e3496473a839a1bd264d2a42b1d85bd7feac"
-  dependencies:
-    stream-slice "^0.1.2"
-
-koa-send@^4.1.3:
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/koa-send/-/koa-send-4.1.3.tgz#0822207bbf5253a414c8f1765ebc29fa41353cb6"
-  dependencies:
-    debug "^2.6.3"
-    http-errors "^1.6.1"
-    mz "^2.6.0"
-    resolve-path "^1.4.0"
-
-koa-static@^4.0.2:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/koa-static/-/koa-static-4.0.3.tgz#5f93ad00fb1905db9ce46667c0e8bb7d22abfcd8"
-  dependencies:
-    debug "^3.1.0"
-    koa-send "^4.1.3"
-
-koa-webpack@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/koa-webpack/-/koa-webpack-4.0.0.tgz#1d9b83c109db106d8ef65db376f910a45ba964c7"
-  dependencies:
-    app-root-path "^2.0.1"
-    merge-options "^1.0.0"
-    webpack-dev-middleware "^3.0.0"
-    webpack-hot-client "^3.0.0"
-    webpack-log "^1.1.1"
-
-koa@^2.4.1:
-  version "2.5.1"
-  resolved "https://registry.yarnpkg.com/koa/-/koa-2.5.1.tgz#79f8b95f8d72d04fe9a58a8da5ebd6d341103f9c"
-  dependencies:
-    accepts "^1.2.2"
-    content-disposition "~0.5.0"
-    content-type "^1.0.0"
-    cookies "~0.7.0"
-    debug "*"
-    delegates "^1.0.0"
-    depd "^1.1.0"
-    destroy "^1.0.3"
-    error-inject "~1.0.0"
-    escape-html "~1.0.1"
-    fresh "^0.5.2"
-    http-assert "^1.1.0"
-    http-errors "^1.2.8"
-    is-generator-function "^1.0.3"
-    koa-compose "^4.0.0"
-    koa-convert "^1.2.0"
-    koa-is-json "^1.0.0"
-    mime-types "^2.0.7"
-    on-finished "^2.1.0"
-    only "0.0.2"
-    parseurl "^1.3.0"
-    statuses "^1.2.0"
-    type-is "^1.5.5"
-    vary "^1.0.0"
-
 last-call-webpack-plugin@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/last-call-webpack-plugin/-/last-call-webpack-plugin-3.0.0.tgz#9742df0e10e3cf46e5c0381c2de90d3a7a2d7555"
@@ -6070,12 +6077,6 @@ last-call-webpack-plugin@^3.0.0:
     lodash "^4.17.5"
     webpack-sources "^1.1.0"
 
-latest-version@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/latest-version/-/latest-version-3.1.0.tgz#a205383fea322b33b5ae3b18abee0dc2f356ee15"
-  dependencies:
-    package-json "^4.0.0"
-
 lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
@@ -6421,7 +6422,7 @@ log-symbols@^1.0.2:
   dependencies:
     chalk "^1.0.0"
 
-log-symbols@^2.1.0, log-symbols@^2.2.0:
+log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
   dependencies:
@@ -6442,12 +6443,9 @@ log-update@^2.3.0:
     cli-cursor "^2.0.0"
     wrap-ansi "^3.0.1"
 
-loglevelnext@^1.0.1, loglevelnext@^1.0.2:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/loglevelnext/-/loglevelnext-1.0.5.tgz#36fc4f5996d6640f539ff203ba819641680d75a2"
-  dependencies:
-    es6-symbol "^3.1.1"
-    object.assign "^4.1.0"
+loglevel@^1.4.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/loglevel/-/loglevel-1.6.1.tgz#e0fc95133b6ef276cdc8887cdaf24aa6f156f8fa"
 
 long@4.0.0:
   version "4.0.0"
@@ -6467,7 +6465,7 @@ loose-envify@^1.0.0:
   dependencies:
     js-tokens "^3.0.0 || ^4.0.0"
 
-loud-rejection@^1.0.0, loud-rejection@^1.6.0:
+loud-rejection@^1.0.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
   dependencies:
@@ -6478,10 +6476,6 @@ lower-case@^1.1.1:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
 
-lowercase-keys@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.1.tgz#6f9e30b47084d971a7c820ff15a6c5167b74c26f"
-
 lru-cache@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-3.2.0.tgz#71789b3b7f5399bec8565dda38aa30d2a097efee"
@@ -6677,25 +6671,9 @@ meow@^4.0.0:
     redent "^2.0.0"
     trim-newlines "^2.0.0"
 
-meow@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/meow/-/meow-5.0.0.tgz#dfc73d63a9afc714a5e371760eb5c88b91078aa4"
-  dependencies:
-    camelcase-keys "^4.0.0"
-    decamelize-keys "^1.0.0"
-    loud-rejection "^1.0.0"
-    minimist-options "^3.0.1"
-    normalize-package-data "^2.3.4"
-    read-pkg-up "^3.0.0"
-    redent "^2.0.0"
-    trim-newlines "^2.0.0"
-    yargs-parser "^10.0.0"
-
-merge-options@^1.0.0, merge-options@^1.0.1:
+merge-descriptors@1.0.1:
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/merge-options/-/merge-options-1.0.1.tgz#2a64b24457becd4e4dc608283247e94ce589aa32"
-  dependencies:
-    is-plain-obj "^1.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
 
 merge-source-map@^1.1.0:
   version "1.1.0"
@@ -6717,6 +6695,10 @@ merge@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
 
+methods@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
+
 micromatch@^2.3.11:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
@@ -6735,7 +6717,7 @@ micromatch@^2.3.11:
     parse-glob "^3.0.4"
     regex-cache "^0.4.2"
 
-micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8:
+micromatch@^3.1.10, micromatch@^3.1.4, micromatch@^3.1.8, micromatch@^3.1.9:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
   dependencies:
@@ -6760,6 +6742,10 @@ miller-rabin@^4.0.0:
     bn.js "^4.0.0"
     brorand "^1.0.1"
 
+"mime-db@>= 1.36.0 < 2":
+  version "1.37.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.37.0.tgz#0b6a0ce6fdbe9576e25f1f2d2fde8830dc0ad0d8"
+
 mime-db@~1.33.0:
   version "1.33.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
@@ -6768,22 +6754,30 @@ mime-db@~1.35.0:
   version "1.35.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.35.0.tgz#0569d657466491283709663ad379a99b90d9ab47"
 
-mime-types@^2.0.7, mime-types@~2.1.18:
-  version "2.1.18"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
-  dependencies:
-    mime-db "~1.33.0"
-
 mime-types@^2.1.12, mime-types@~2.1.17:
   version "2.1.19"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.19.tgz#71e464537a7ef81c15f2db9d97e913fc0ff606f0"
   dependencies:
     mime-db "~1.35.0"
 
-mime@^2.0.3, mime@^2.1.0:
+mime-types@~2.1.18:
+  version "2.1.18"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
+  dependencies:
+    mime-db "~1.33.0"
+
+mime@1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
+
+mime@^2.0.3:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-2.3.1.tgz#b1621c54d63b97c47d3cfe7f7215f7d64517c369"
 
+mime@^2.3.1:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.4.0.tgz#e051fd881358585f3279df333fe694da0bcffdd6"
+
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
@@ -6927,10 +6921,21 @@ ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
-ms@^2.0.0:
+ms@^2.0.0, ms@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
 
+multicast-dns-service-types@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/multicast-dns-service-types/-/multicast-dns-service-types-1.1.0.tgz#899f11d9686e5e05cb91b35d5f0e63b773cfc901"
+
+multicast-dns@^6.0.1:
+  version "6.2.3"
+  resolved "https://registry.yarnpkg.com/multicast-dns/-/multicast-dns-6.2.3.tgz#a0ec7bd9055c4282f790c3c82f4e28db3b31b229"
+  dependencies:
+    dns-packet "^1.3.1"
+    thunky "^1.0.2"
+
 multimatch@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/multimatch/-/multimatch-2.1.0.tgz#9c7906a22fb4c02919e2f5f75161b4cdbd4b2a2b"
@@ -6944,29 +6949,10 @@ mute-stream@0.0.7, mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
-mz@^2.6.0:
-  version "2.7.0"
-  resolved "https://registry.yarnpkg.com/mz/-/mz-2.7.0.tgz#95008057a56cafadc2bc63dde7f9ff6955948e32"
-  dependencies:
-    any-promise "^1.0.0"
-    object-assign "^4.0.1"
-    thenify-all "^1.0.0"
-
 nan@^2.9.2:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
 
-nanoassert@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/nanoassert/-/nanoassert-1.1.0.tgz#4f3152e09540fde28c76f44b19bbcd1d5a42478d"
-
-nanobus@^4.3.1:
-  version "4.3.3"
-  resolved "https://registry.yarnpkg.com/nanobus/-/nanobus-4.3.3.tgz#a9635d38c687853641e2646bb2be6510cf966233"
-  dependencies:
-    nanotiming "^7.2.0"
-    remove-array-items "^1.0.0"
-
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
@@ -6983,23 +6969,10 @@ nanomatch@^1.2.9:
     snapdragon "^0.8.1"
     to-regex "^3.0.1"
 
-nanoscheduler@^1.0.2:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/nanoscheduler/-/nanoscheduler-1.0.3.tgz#6ca027941bf3e04139ea4bab6227ea6ad803692f"
-  dependencies:
-    nanoassert "^1.1.0"
-
 nanoseconds@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/nanoseconds/-/nanoseconds-1.0.1.tgz#596efc62110766be1ede671fedd861f5562318d3"
 
-nanotiming@^7.2.0:
-  version "7.3.1"
-  resolved "https://registry.yarnpkg.com/nanotiming/-/nanotiming-7.3.1.tgz#dc5cf8d9d8ad401a4394d1a9b7a16714bccfefda"
-  dependencies:
-    nanoassert "^1.1.0"
-    nanoscheduler "^1.0.2"
-
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
@@ -7020,10 +6993,6 @@ neo-async@^2.5.0:
   version "2.5.1"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.1.tgz#acb909e327b1e87ec9ef15f41b8a269512ad41ee"
 
-next-tick@1:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
-
 nice-try@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.4.tgz#d93962f6c52f2c1558c0fbda6d512819f1efe1c4"
@@ -7049,6 +7018,10 @@ node-fetch-npm@^2.0.2:
     json-parse-better-errors "^1.0.0"
     safe-buffer "^5.1.1"
 
+node-forge@0.7.5:
+  version "0.7.5"
+  resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.7.5.tgz#6c152c345ce11c52f465c2abd957e8639cd674df"
+
 node-gyp@^3.8.0:
   version "3.8.0"
   resolved "https://registry.yarnpkg.com/node-gyp/-/node-gyp-3.8.0.tgz#540304261c330e80d0d5edce253a68cb3964218c"
@@ -7360,12 +7333,20 @@ object.pick@^1.3.0:
   dependencies:
     isobject "^3.0.1"
 
-on-finished@^2.1.0:
+obuf@^1.0.0, obuf@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.2.tgz#09bea3343d41859ebd446292d11c9d4db619084e"
+
+on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
   dependencies:
     ee-first "1.1.1"
 
+on-headers@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
+
 once@^1.3.0, once@^1.3.1, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -7382,10 +7363,6 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
-only@0.0.2:
-  version "0.0.2"
-  resolved "https://registry.yarnpkg.com/only/-/only-0.0.2.tgz#2afde84d03e50b9a8edc444e30610a70295edfb4"
-
 opn@^5.1.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/opn/-/opn-5.3.0.tgz#64871565c863875f052cfdf53d3e3cb5adb53b1c"
@@ -7426,6 +7403,12 @@ ora@^0.2.3:
     cli-spinners "^0.1.2"
     object-assign "^4.0.1"
 
+original@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/original/-/original-1.0.2.tgz#e442a61cffe1c5fd20a65f3261c26663b303f25f"
+  dependencies:
+    url-parse "^1.4.3"
+
 os-browserify@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
@@ -7529,15 +7512,6 @@ p-waterfall@^1.0.0:
   dependencies:
     p-reduce "^1.0.0"
 
-package-json@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/package-json/-/package-json-4.0.1.tgz#8869a0401253661c4c4ca3da6c2121ed555f5eed"
-  dependencies:
-    got "^6.7.1"
-    registry-auth-token "^3.0.1"
-    registry-url "^3.0.3"
-    semver "^5.1.0"
-
 pacote@^9.2.3:
   version "9.2.3"
   resolved "https://registry.yarnpkg.com/pacote/-/pacote-9.2.3.tgz#48cfe87beb9177acd6594355a584a538835424b3"
@@ -7628,7 +7602,7 @@ parse5@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-4.0.0.tgz#6d78656e3da8d78b4ec0b906f7c08ef1dfe3f608"
 
-parseurl@^1.3.0:
+parseurl@~1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
 
@@ -7654,7 +7628,7 @@ path-exists@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
 
-path-is-absolute@1.0.1, path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
+path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
 
@@ -7670,6 +7644,10 @@ path-parse@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
 
+path-to-regexp@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
+
 path-type@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
@@ -7722,6 +7700,12 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
+pkg-dir@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-3.0.0.tgz#2749020f239ed990881b1f71210d51eb6523bea3"
+  dependencies:
+    find-up "^3.0.0"
+
 please-upgrade-node@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.0.2.tgz#7b9eaeca35aa4a43d6ebdfd10616c042f9a83acc"
@@ -7744,6 +7728,14 @@ portfinder@^1.0.13:
     debug "^2.2.0"
     mkdirp "0.5.x"
 
+portfinder@^1.0.9:
+  version "1.0.20"
+  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.20.tgz#bea68632e54b2e13ab7b0c4775e9b41bf270e44a"
+  dependencies:
+    async "^1.5.2"
+    debug "^2.2.0"
+    mkdirp "0.5.x"
+
 posix-character-classes@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
@@ -8029,7 +8021,7 @@ prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
-prepend-http@^1.0.0, prepend-http@^1.0.1:
+prepend-http@^1.0.0:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
 
@@ -8141,6 +8133,13 @@ protoduck@^5.0.1:
   dependencies:
     genfun "^5.0.0"
 
+proxy-addr@~2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.4.tgz#ecfc733bf22ff8c6f407fa275327b9ab67e48b93"
+  dependencies:
+    forwarded "~0.1.2"
+    ipaddr.js "1.8.0"
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -8201,7 +8200,7 @@ q@^1.1.2, q@^1.4.1, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
 
-qs@~6.5.1:
+qs@6.5.2, qs@~6.5.1:
   version "6.5.2"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
 
@@ -8220,6 +8219,10 @@ querystring@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
 
+querystringify@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.0.tgz#7ded8dfbf7879dcc60d0a644ac6754b283ad17ef"
+
 quick-lru@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
@@ -8245,7 +8248,7 @@ randomfill@^1.0.3:
     randombytes "^2.0.5"
     safe-buffer "^5.1.0"
 
-range-parser@^1.0.3:
+range-parser@^1.0.3, range-parser@~1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
 
@@ -8255,7 +8258,16 @@ raphael@2.2.7:
   dependencies:
     eve-raphael "0.5.0"
 
-rc@^1.0.1, rc@^1.1.6, rc@^1.2.7:
+raw-body@2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
+  dependencies:
+    bytes "3.0.0"
+    http-errors "1.6.3"
+    iconv-lite "0.4.23"
+    unpipe "1.0.0"
+
+rc@^1.2.7:
   version "1.2.8"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
   dependencies:
@@ -8348,6 +8360,14 @@ readable-stream@1.0:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
+readable-stream@^3.0.6:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.1.1.tgz#ed6bbc6c5ba58b090039ff18ce670515795aeb06"
+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
 readdir-scoped-modules@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/readdir-scoped-modules/-/readdir-scoped-modules-1.0.2.tgz#9fafa37d286be5d92cbaebdee030dc9b5f406747"
@@ -8470,19 +8490,6 @@ register-service-worker@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/register-service-worker/-/register-service-worker-1.5.2.tgz#a4631896c38d6ec5597358f44988cc46a911912d"
 
-registry-auth-token@^3.0.1:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/registry-auth-token/-/registry-auth-token-3.3.2.tgz#851fd49038eecb586911115af845260eec983f20"
-  dependencies:
-    rc "^1.1.6"
-    safe-buffer "^5.0.1"
-
-registry-url@^3.0.3:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/registry-url/-/registry-url-3.1.0.tgz#3d4ef870f73dde1d77f0cf9a381432444e174942"
-  dependencies:
-    rc "^1.0.1"
-
 regjsgen@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
@@ -8507,10 +8514,6 @@ relateurl@0.2.x:
   version "0.2.7"
   resolved "https://registry.yarnpkg.com/relateurl/-/relateurl-0.2.7.tgz#54dbf377e51440aca90a4cd274600d3ff2d888a9"
 
-remove-array-items@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/remove-array-items/-/remove-array-items-1.0.0.tgz#07bf42cb332f4cf6e85ead83b5e4e896d2326b21"
-
 remove-trailing-separator@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
@@ -8597,6 +8600,10 @@ require-uncached@^1.0.3:
     caller-path "^0.1.0"
     resolve-from "^1.0.0"
 
+requires-port@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+
 resolve-cwd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-2.0.0.tgz#00a9f7387556e27038eae232caa372a6a59b665a"
@@ -8615,13 +8622,6 @@ resolve-from@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
 
-resolve-path@^1.3.3, resolve-path@^1.4.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/resolve-path/-/resolve-path-1.4.0.tgz#c4bda9f5efb2fce65247873ab36bb4d834fe16f7"
-  dependencies:
-    http-errors "~1.6.2"
-    path-is-absolute "1.0.1"
-
 resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
@@ -8636,7 +8636,7 @@ resolve@1.x, resolve@^1.8.1:
   dependencies:
     path-parse "^1.0.5"
 
-resolve@^1.2.0, resolve@^1.3.2, resolve@^1.6.0:
+resolve@^1.2.0, resolve@^1.3.2:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.8.0.tgz#a7f2ac27b78480ecc09c83782741d9f26e4f0c3e"
   dependencies:
@@ -8715,7 +8715,7 @@ rxjs@^6.1.0:
   dependencies:
     tslib "^1.9.0"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.2, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
@@ -8774,21 +8774,25 @@ section-matter@^1.0.0:
     extend-shallow "^2.0.1"
     kind-of "^6.0.0"
 
+select-hose@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
+
 select@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
 
+selfsigned@^1.9.1:
+  version "1.10.4"
+  resolved "https://registry.yarnpkg.com/selfsigned/-/selfsigned-1.10.4.tgz#cdd7eccfca4ed7635d47a08bf2d5d3074092e2cd"
+  dependencies:
+    node-forge "0.7.5"
+
 semver-compare@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
 
-semver-diff@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
-  dependencies:
-    semver "^5.0.3"
-
-"semver@2 || 3 || 4 || 5", semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
+"semver@2 || 3 || 4 || 5", semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
@@ -8800,10 +8804,49 @@ semver@~5.3.0:
   version "5.3.0"
   resolved "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
 
+send@0.16.2:
+  version "0.16.2"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.16.2.tgz#6ecca1e0f8c156d141597559848df64730a6bbc1"
+  dependencies:
+    debug "2.6.9"
+    depd "~1.1.2"
+    destroy "~1.0.4"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "~1.6.2"
+    mime "1.4.1"
+    ms "2.0.0"
+    on-finished "~2.3.0"
+    range-parser "~1.2.0"
+    statuses "~1.4.0"
+
 serialize-javascript@^1.3.0, serialize-javascript@^1.4.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.5.0.tgz#1aa336162c88a890ddad5384baebc93a655161fe"
 
+serve-index@^1.7.2:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/serve-index/-/serve-index-1.9.1.tgz#d3768d69b1e7d82e5ce050fff5b453bea12a9239"
+  dependencies:
+    accepts "~1.3.4"
+    batch "0.6.1"
+    debug "2.6.9"
+    escape-html "~1.0.3"
+    http-errors "~1.6.2"
+    mime-types "~2.1.17"
+    parseurl "~1.3.2"
+
+serve-static@1.13.2:
+  version "1.13.2"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.13.2.tgz#095e8472fd5b46237db50ce486a43f4b86c6cec1"
+  dependencies:
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    parseurl "~1.3.2"
+    send "0.16.2"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -8920,6 +8963,24 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
+sockjs-client@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/sockjs-client/-/sockjs-client-1.3.0.tgz#12fc9d6cb663da5739d3dc5fb6e8687da95cb177"
+  dependencies:
+    debug "^3.2.5"
+    eventsource "^1.0.7"
+    faye-websocket "~0.11.1"
+    inherits "^2.0.3"
+    json3 "^3.3.2"
+    url-parse "^1.4.3"
+
+sockjs@0.3.19:
+  version "0.3.19"
+  resolved "https://registry.yarnpkg.com/sockjs/-/sockjs-0.3.19.tgz#d976bbe800af7bd20ae08598d582393508993c0d"
+  dependencies:
+    faye-websocket "^0.10.0"
+    uuid "^3.0.1"
+
 socks-proxy-agent@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/socks-proxy-agent/-/socks-proxy-agent-4.0.1.tgz#5936bf8b707a993079c6f37db2091821bffa6473"
@@ -9023,6 +9084,27 @@ spdx-license-ids@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.0.tgz#7a7cd28470cc6d3a1cfe6d66886f6bc430d3ac87"
 
+spdy-transport@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdy-transport/-/spdy-transport-3.0.0.tgz#00d4863a6400ad75df93361a1608605e5dcdcf31"
+  dependencies:
+    debug "^4.1.0"
+    detect-node "^2.0.4"
+    hpack.js "^2.1.6"
+    obuf "^1.1.2"
+    readable-stream "^3.0.6"
+    wbuf "^1.7.3"
+
+spdy@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/spdy/-/spdy-4.0.0.tgz#81f222b5a743a329aa12cea6a390e60e9b613c52"
+  dependencies:
+    debug "^4.1.0"
+    handle-thing "^2.0.0"
+    http-deceiver "^1.2.7"
+    select-hose "^2.0.0"
+    spdy-transport "^3.0.0"
+
 split-string@^3.0.1, split-string@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/split-string/-/split-string-3.1.0.tgz#7cb09dda3a86585705c64b39a6466038682e8fe2"
@@ -9087,10 +9169,14 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
-"statuses@>= 1.4.0 < 2", statuses@^1.2.0:
+"statuses@>= 1.4.0 < 2":
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
 
+statuses@~1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
+
 std-env@^1.1.0, std-env@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/std-env/-/std-env-1.3.0.tgz#8ce754a401a61f1ac49c8eb55f2a8c0c63d54954"
@@ -9129,10 +9215,6 @@ stream-shift@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
 
-stream-slice@^0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/stream-slice/-/stream-slice-0.1.2.tgz#2dc4f4e1b936fb13f3eb39a2def1932798d07a4b"
-
 strict-uri-encode@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
@@ -9169,6 +9251,12 @@ string_decoder@^1.0.0, string_decoder@~1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
+string_decoder@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.2.0.tgz#fe86e738b19544afe70469243b2a1ee9240eae8d"
+  dependencies:
+    safe-buffer "~5.1.0"
+
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -9267,6 +9355,12 @@ supports-color@^3.1.2, supports-color@^3.2.3:
   dependencies:
     has-flag "^1.0.0"
 
+supports-color@^5.1.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  dependencies:
+    has-flag "^3.0.0"
+
 supports-color@^5.3.0, supports-color@^5.4.0:
   version "5.4.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
@@ -9373,12 +9467,6 @@ tempfile@^1.1.1:
     os-tmpdir "^1.0.0"
     uuid "^2.0.1"
 
-term-size@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/term-size/-/term-size-1.2.0.tgz#458b83887f288fc56d6fffbfad262e26638efa69"
-  dependencies:
-    execa "^0.7.0"
-
 test-exclude@^4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.1.tgz#dfa222f03480bca69207ca728b37d74b45f724fa"
@@ -9393,22 +9481,10 @@ text-extensions@^1.0.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/text-extensions/-/text-extensions-1.7.0.tgz#faaaba2625ed746d568a23e4d0aacd9bf08a8b39"
 
-text-table@^0.2.0, text-table@~0.2.0:
+text-table@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
 
-thenify-all@^1.0.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/thenify-all/-/thenify-all-1.6.0.tgz#1a1918d402d8fc3f98fbf234db0bcc8cc10e9726"
-  dependencies:
-    thenify ">= 3.1.0 < 4"
-
-"thenify@>= 3.1.0 < 4":
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/thenify/-/thenify-3.3.0.tgz#e69e38a1babe969b0108207978b9f62b88604839"
-  dependencies:
-    any-promise "^1.0.0"
-
 throat@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/throat/-/throat-4.1.0.tgz#89037cbc92c56ab18926e6ba4cbb200e15672a6a"
@@ -9424,13 +9500,9 @@ through@2, "through@>=2.2.7 <3", through@^2.3.4, through@^2.3.6, through@~2.3.4:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
-time-fix-plugin@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/time-fix-plugin/-/time-fix-plugin-2.0.3.tgz#b6b1ead519099bc621e28edb77dac7531918b7e1"
-
-timed-out@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
+thunky@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/thunky/-/thunky-1.0.3.tgz#f5df732453407b09191dae73e2a8cc73f381a826"
 
 timers-browserify@^2.0.4:
   version "2.0.10"
@@ -9586,7 +9658,7 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-type-is@^1.5.5:
+type-is@~1.6.16:
   version "1.6.16"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
   dependencies:
@@ -9707,16 +9779,14 @@ unique-slug@^2.0.0:
   dependencies:
     imurmurhash "^0.1.4"
 
-unique-string@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/unique-string/-/unique-string-1.0.0.tgz#9e1057cca851abb93398f8b33ae187b99caec11a"
-  dependencies:
-    crypto-random-string "^1.0.0"
-
 universalify@^0.1.0:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
 
+unpipe@1.0.0, unpipe@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -9724,29 +9794,10 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
-unzip-response@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/unzip-response/-/unzip-response-2.0.1.tgz#d2f0f737d16b0615e72a6935ed04214572d56f97"
-
 upath@^1.0.5, upath@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/upath/-/upath-1.1.0.tgz#35256597e46a581db4793d0ce47fa9aebfc9fabd"
 
-update-notifier@^2.3.0:
-  version "2.5.0"
-  resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-2.5.0.tgz#d0744593e13f161e406acb1d9408b72cad08aff6"
-  dependencies:
-    boxen "^1.2.1"
-    chalk "^2.0.1"
-    configstore "^3.0.0"
-    import-lazy "^2.1.0"
-    is-ci "^1.0.10"
-    is-installed-globally "^0.1.0"
-    is-npm "^1.0.0"
-    latest-version "^3.0.0"
-    semver-diff "^2.0.0"
-    xdg-basedir "^3.0.0"
-
 upper-case@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/upper-case/-/upper-case-1.1.3.tgz#f6b4501c2ec4cdd26ba78be7222961de77621598"
@@ -9761,14 +9812,6 @@ urix@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
 
-url-join@3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-3.0.0.tgz#26e8113ace195ea30d0fc38186e45400f9cea672"
-
-url-join@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/url-join/-/url-join-4.0.0.tgz#4d3340e807d3773bda9991f8305acdcc2a665d2a"
-
 url-loader@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/url-loader/-/url-loader-1.0.1.tgz#61bc53f1f184d7343da2728a1289ef8722ea45ee"
@@ -9777,11 +9820,12 @@ url-loader@^1.0.1:
     mime "^2.0.3"
     schema-utils "^0.4.3"
 
-url-parse-lax@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/url-parse-lax/-/url-parse-lax-1.0.0.tgz#7af8f303645e9bd79a272e7a14ac68bc0609da73"
+url-parse@^1.4.3:
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.4.tgz#cac1556e95faa0303691fec5cf9d5a1bc34648f8"
   dependencies:
-    prepend-http "^1.0.1"
+    querystringify "^2.0.0"
+    requires-port "^1.0.0"
 
 url@^0.11.0:
   version "0.11.0"
@@ -9794,7 +9838,7 @@ use@^3.1.0:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
 
-util-deprecate@~1.0.1:
+util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
@@ -9825,18 +9869,18 @@ utila@~0.4:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/utila/-/utila-0.4.0.tgz#8a16a05d445657a3aea5eecc5b12a4fa5379772c"
 
+utils-merge@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+
 uuid@^2.0.1:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-2.0.3.tgz#67e2e863797215530dff318e5bf9dcebfd47b21a"
 
-uuid@^3.0.1, uuid@^3.1.0:
+uuid@^3.0.1, uuid@^3.1.0, uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
 
-v8-compile-cache@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/v8-compile-cache/-/v8-compile-cache-2.0.0.tgz#526492e35fc616864284700b7043e01baee09f0a"
-
 validate-npm-package-license@^3.0.1:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz#81643bcbef1bdfecd4623793dc4648948ba98338"
@@ -9857,7 +9901,7 @@ validate-npm-package-name@^3.0.0:
   dependencies:
     builtins "^1.0.3"
 
-vary@^1.0.0:
+vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
 
@@ -10007,6 +10051,12 @@ watchpack@^1.5.0:
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
 
+wbuf@^1.1.0, wbuf@^1.7.3:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/wbuf/-/wbuf-1.7.3.tgz#c1d8d149316d3ea852848895cb6a0bfe887b87df"
+  dependencies:
+    minimalistic-assert "^1.0.0"
+
 wcwidth@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/wcwidth/-/wcwidth-1.0.1.tgz#f0b0dcf915bc5ff1528afadb2c0e17b532da2fe8"
@@ -10031,37 +10081,56 @@ webpack-chain@^4.9.0:
     deepmerge "^1.5.2"
     javascript-stringify "^1.6.0"
 
-webpack-dev-middleware@^3.0.0:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.1.3.tgz#8b32aa43da9ae79368c1bf1183f2b6cf5e1f39ed"
+webpack-dev-middleware@3.4.0:
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-3.4.0.tgz#1132fecc9026fd90f0ecedac5cbff75d1fb45890"
   dependencies:
-    loud-rejection "^1.6.0"
     memory-fs "~0.4.1"
-    mime "^2.1.0"
-    path-is-absolute "^1.0.0"
+    mime "^2.3.1"
     range-parser "^1.0.3"
-    url-join "^4.0.0"
-    webpack-log "^1.0.1"
+    webpack-log "^2.0.0"
 
-webpack-hot-client@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/webpack-hot-client/-/webpack-hot-client-3.0.0.tgz#b714f257a264001275bc1491741685779cde12f2"
+webpack-dev-server@^3.1.14:
+  version "3.1.14"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-3.1.14.tgz#60fb229b997fc5a0a1fc6237421030180959d469"
   dependencies:
-    json-stringify-safe "^5.0.1"
-    loglevelnext "^1.0.2"
-    strip-ansi "^4.0.0"
-    uuid "^3.1.0"
-    webpack-log "^1.1.1"
-    ws "^4.0.0"
+    ansi-html "0.0.7"
+    bonjour "^3.5.0"
+    chokidar "^2.0.0"
+    compression "^1.5.2"
+    connect-history-api-fallback "^1.3.0"
+    debug "^3.1.0"
+    del "^3.0.0"
+    express "^4.16.2"
+    html-entities "^1.2.0"
+    http-proxy-middleware "~0.18.0"
+    import-local "^2.0.0"
+    internal-ip "^3.0.1"
+    ip "^1.1.5"
+    killable "^1.0.0"
+    loglevel "^1.4.1"
+    opn "^5.1.0"
+    portfinder "^1.0.9"
+    schema-utils "^1.0.0"
+    selfsigned "^1.9.1"
+    semver "^5.6.0"
+    serve-index "^1.7.2"
+    sockjs "0.3.19"
+    sockjs-client "1.3.0"
+    spdy "^4.0.0"
+    strip-ansi "^3.0.0"
+    supports-color "^5.1.0"
+    url "^0.11.0"
+    webpack-dev-middleware "3.4.0"
+    webpack-log "^2.0.0"
+    yargs "12.0.2"
 
-webpack-log@^1.0.1, webpack-log@^1.1.1, webpack-log@^1.1.2:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/webpack-log/-/webpack-log-1.2.0.tgz#a4b34cda6b22b518dbb0ab32e567962d5c72a43d"
+webpack-log@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/webpack-log/-/webpack-log-2.0.0.tgz#5b7928e0637593f119d32f6227c1e0ac31e1b47f"
   dependencies:
-    chalk "^2.1.0"
-    log-symbols "^2.1.0"
-    loglevelnext "^1.0.1"
-    uuid "^3.1.0"
+    ansi-colors "^3.0.0"
+    uuid "^3.3.2"
 
 webpack-merge@^4.1.2:
   version "4.1.3"
@@ -10069,35 +10138,6 @@ webpack-merge@^4.1.2:
   dependencies:
     lodash "^4.17.5"
 
-webpack-serve@^1.0.2:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/webpack-serve/-/webpack-serve-1.0.4.tgz#d1c83955926969ba195e5032f978da92ef07829c"
-  dependencies:
-    "@shellscape/koa-static" "^4.0.4"
-    "@webpack-contrib/config-loader" "^1.1.1"
-    chalk "^2.3.0"
-    clipboardy "^1.2.2"
-    cosmiconfig "^5.0.2"
-    debug "^3.1.0"
-    find-up "^2.1.0"
-    get-port "^3.2.0"
-    import-local "^1.0.0"
-    killable "^1.0.0"
-    koa "^2.4.1"
-    koa-webpack "^4.0.0"
-    lodash "^4.17.5"
-    loud-rejection "^1.6.0"
-    meow "^5.0.0"
-    nanobus "^4.3.1"
-    opn "^5.1.0"
-    resolve "^1.6.0"
-    time-fix-plugin "^2.0.0"
-    update-notifier "^2.3.0"
-    url-join "3.0.0"
-    v8-compile-cache "^2.0.0"
-    webpack-hot-client "^3.0.0"
-    webpack-log "^1.1.2"
-
 webpack-sources@^1.0.1, webpack-sources@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-1.1.0.tgz#a101ebae59d6507354d71d8013950a3a8b7a5a54"
@@ -10150,6 +10190,17 @@ webpackbar@^2.6.1:
     std-env "^1.3.0"
     table "^4.0.3"
 
+websocket-driver@>=0.5.1:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/websocket-driver/-/websocket-driver-0.7.0.tgz#0caf9d2d755d93aee049d4bdd0d3fe2cca2a24eb"
+  dependencies:
+    http-parser-js ">=0.4.0"
+    websocket-extensions ">=0.1.1"
+
+websocket-extensions@>=0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.3.tgz#5d2ff22977003ec687a4b87073dfbbac146ccf29"
+
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz#57c235bc8657e914d24e1a397d3c82daee0a6ba3"
@@ -10200,12 +10251,6 @@ wide-align@^1.1.0:
   dependencies:
     string-width "^1.0.2 || 2"
 
-widest-line@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/widest-line/-/widest-line-2.0.0.tgz#0142a4e8a243f8882c0233aa0e0281aa76152273"
-  dependencies:
-    string-width "^2.1.1"
-
 window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
@@ -10380,27 +10425,20 @@ write@^0.2.1:
   dependencies:
     mkdirp "^0.5.1"
 
-ws@^4.0.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-4.1.0.tgz#a979b5d7d4da68bf54efe0408967c324869a7289"
-  dependencies:
-    async-limiter "~1.0.0"
-    safe-buffer "~5.1.0"
-
 ws@^5.2.0:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
   dependencies:
     async-limiter "~1.0.0"
 
-xdg-basedir@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-3.0.0.tgz#496b2cc109eca8dbacfe2dc72b603c17c5870ad4"
-
 xml-name-validator@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
 
+xregexp@4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
+
 xtend@^4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
@@ -10421,18 +10459,12 @@ yallist@^3.0.0, yallist@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
 
-yargs-parser@10.x:
+yargs-parser@10.x, yargs-parser@^10.1.0:
   version "10.1.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"
   dependencies:
     camelcase "^4.1.0"
 
-yargs-parser@^10.0.0:
-  version "10.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.0.0.tgz#c737c93de2567657750cb1f2c00be639fd19c994"
-  dependencies:
-    camelcase "^4.1.0"
-
 yargs-parser@^11.1.1:
   version "11.1.1"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-11.1.1.tgz#879a0865973bca9f6bab5cbdf3b1c67ec7d3bcf4"
@@ -10446,6 +10478,23 @@ yargs-parser@^9.0.2:
   dependencies:
     camelcase "^4.1.0"
 
+yargs@12.0.2:
+  version "12.0.2"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.2.tgz#fe58234369392af33ecbef53819171eff0f5aadc"
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^2.0.0"
+    find-up "^3.0.0"
+    get-caller-file "^1.0.1"
+    os-locale "^3.0.0"
+    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 || ^4.0.0"
+    yargs-parser "^10.1.0"
+
 yargs@^11.0.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"