diff --git a/README.md b/README.md
index d7e42da..4dd58da 100644
--- a/README.md
+++ b/README.md
@@ -160,7 +160,7 @@ See [the tutorials](https://github.com/lwsjs/local-web-server/wiki#tutorials) fo
 ```sh
 $ npm install -g local-web-server
 ```
+
 * * *
 
-© 2013-19
- Lloyd Brookes <75pound@gmail.com>. Documented by [jsdoc-to-markdown](https://github.com/jsdoc2md/jsdoc-to-markdown).
+&copy; 2013-19 Lloyd Brookes \<75pound@gmail.com\>. Documented by [jsdoc-to-markdown](https://github.com/jsdoc2md/jsdoc-to-markdown).
diff --git a/bin/cli.js b/bin/cli.js
index ed6e59f..939aeba 100755
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -1,8 +1,15 @@
 #!/usr/bin/env node
 const nodeVersionMatches = require('node-version-matches')
 
-if (nodeVersionMatches('>=8.0.0')) {
-  require('../lib/cli-app').run()
+if (nodeVersionMatches('>=8')) {
+  const WsCli = require('../lib/cli-app')
+  const cli = new WsCli()
+  try {
+    cli.start()
+  } catch (err) {
+    console.error(require('util').inspect(err, { depth: 6, colors: true }))
+    process.exitCode = 1
+  }
 } else {
   console.log('Sorry, this app requires node v8.0.0 or above. Please upgrade https://nodejs.org/en/')
 }
diff --git a/index.js b/index.js
index d26461e..44574f6 100644
--- a/index.js
+++ b/index.js
@@ -15,6 +15,9 @@ const path = require('path')
  *   websocket: 'src/websocket-server.js'
  * })
  * // secure, SPA server with listening websocket now ready on port 8050
+ *
+ * // shut down the server
+ * server.close()
  */
 
 /**
diff --git a/lib/cli-app.js b/lib/cli-app.js
index 0c7eea9..bccfbb4 100644
--- a/lib/cli-app.js
+++ b/lib/cli-app.js
@@ -1,13 +1,62 @@
-const LwsCliApp = require('lws/lib/cli-app')
+const LwsCli = require('lws/lib/cli-app')
+const path = require('path')
 
-class WsCliApp extends LwsCliApp {
-  constructor (options) {
-    super(options)
-    /* override default serve command */
-    this.commands.add(null, require('./command/serve'))
-    /* add middleware-list command */
-    this.commands.add('middleware-list', require('./command/middleware-list'))
+class WsCli extends LwsCli {
+  execute (options, argv) {
+    const commandLineArgs = require('command-line-args')
+    const cliOptions = commandLineArgs(this.partialDefinitions(), { camelCase: true, partial: true })
+    if (cliOptions.defaultStack) {
+      const list = require('./default-stack')
+      this.log(list)
+    } else {
+      options = {
+        stack: require('./default-stack').slice(),
+        moduleDir: path.resolve(__dirname, `../node_modules`),
+        modulePrefix: 'lws-'
+      }
+      return super.execute(options, argv)
+    }
+  }
+
+  partialDefinitions () {
+    return super.partialDefinitions().concat([
+      {
+        name: 'default-stack',
+        type: Boolean,
+        description: 'Print the default middleware stack. Any of these built-in middlewares are available to use in a custom stack.',
+        section: 'core'
+      }
+    ])
+  }
+
+  usage () {
+    const sections = super.usage()
+    sections.shift()
+    sections.shift()
+    sections.pop()
+    sections.unshift(
+      {
+        header: 'local-web-server',
+        content: 'The modular web server for productive full-stack development.'
+      },
+      {
+        header: 'Synopsis',
+        content: [
+          '$ ws <options>',
+          '$ ws {underline command} <options>'
+        ]
+      }
+    )
+    sections.push({
+      content: 'Project home: {underline https://github.com/lwsjs/local-web-server}'
+    })
+    return sections
+  }
+
+  showVersion () {
+    const pkg = require(path.resolve(__dirname, '..', 'package.json'))
+    this.log(pkg.version)
   }
 }
 
-module.exports = WsCliApp
+module.exports = WsCli
diff --git a/lib/command/middleware-list.js b/lib/command/middleware-list.js
deleted file mode 100644
index 557efc4..0000000
--- a/lib/command/middleware-list.js
+++ /dev/null
@@ -1,11 +0,0 @@
-class MiddlewareList {
-  description () {
-    return 'Print available middleware'
-  }
-  execute (options) {
-    const list = require('../default-stack')
-    console.log(list)
-  }
-}
-
-module.exports = MiddlewareList
diff --git a/lib/command/serve.js b/lib/command/serve.js
deleted file mode 100644
index 956ed0e..0000000
--- a/lib/command/serve.js
+++ /dev/null
@@ -1,44 +0,0 @@
-const ServeCommand = require('lws/lib/command/serve')
-const path = require('path')
-
-class WsServe extends ServeCommand {
-  execute (options, argv) {
-    options = {
-      stack: require('../default-stack'),
-      moduleDir: path.resolve(__dirname, `../../node_modules`),
-      modulePrefix: 'lws-'
-    }
-    return super.execute(options, argv)
-  }
-
-  usage () {
-    const sections = super.usage()
-    sections.shift()
-    sections.shift()
-    sections.pop()
-    sections.unshift(
-      {
-        header: 'local-web-server',
-        content: 'The modular web server for productive full-stack development.'
-      },
-      {
-        header: 'Synopsis',
-        content: [
-          '$ ws <options>',
-          '$ ws {underline command} <options>'
-        ]
-      }
-    )
-    sections.push({
-      content: 'Project home: {underline https://github.com/lwsjs/local-web-server}'
-    })
-    return sections
-  }
-
-  showVersion () {
-    const pkg = require(path.resolve(__dirname, '..', '..', 'package.json'))
-    console.log(pkg.version)
-  }
-}
-
-module.exports = WsServe
diff --git a/package-lock.json b/package-lock.json
index a4f5e93..7c97c4c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,12 +4,138 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
-    "@babel/parser": {
+    "@babel/code-frame": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
+      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/generator": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.4.4.tgz",
+      "integrity": "sha512-53UOLK6TVNqKxf7RUh8NE851EHRxOOeVXKbK2bivdb+iziMyk03Sr4eaE9OELCbyZAAafAKPDwF2TPUES5QbxQ==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.4.4",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.11",
+        "source-map": "^0.5.0",
+        "trim-right": "^1.0.1"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        }
+      }
+    },
+    "@babel/helper-function-name": {
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.1.0.tgz",
+      "integrity": "sha512-A95XEoCpb3TO+KZzJ4S/5uW5fNe26DjBGqf1o9ucyLyCmi1dXq/B3c8iaWTfBk3VvetUxl16e8tIrd5teOCfGw==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-get-function-arity": "^7.0.0",
+        "@babel/template": "^7.1.0",
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-get-function-arity": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0.tgz",
+      "integrity": "sha512-r2DbJeg4svYvt3HOS74U4eWKsUAMRH01Z1ds1zx8KNTPtpTL5JAsdFv8BNyOpVqdFhHkkRDIg5B4AsxmkjAlmQ==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.0.0"
+      }
+    },
+    "@babel/helper-split-export-declaration": {
       "version": "7.4.4",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.4.4.tgz",
-      "integrity": "sha512-5pCS4mOsL+ANsFZGdvNLybx4wtqAZJ0MJjMHxvzI3bvIsz6sQvzW8XX92EYIkiPtIvcfG3Aj+Ir5VNyjnZhP7w==",
+      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.4.4.tgz",
+      "integrity": "sha512-Ro/XkzLf3JFITkW6b+hNxzZ1n5OQ80NvIUdmHspih1XAhtN3vPTuUFT4eQnela+2MaZ5ulH+iyP513KJrxbN7Q==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.4.4"
+      }
+    },
+    "@babel/highlight": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0.tgz",
+      "integrity": "sha512-UFMC4ZeFC48Tpvj7C8UgLvtkaUuovQX+5xNWrsIoMG8o2z+XFKjKaN9iVmS84dPwVN00W4wPmqvYoZF3EGAsfw==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "@babel/parser": {
+      "version": "7.4.5",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.4.5.tgz",
+      "integrity": "sha512-9mUqkL1FF5T7f0WDFfAoDdiMVPWsdD1gZYzSnaXsxUCUqzuch/8of9G3VUSNiZmMBoRxT3neyVsqeiL/ZPcjew==",
       "dev": true
     },
+    "@babel/template": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.4.4.tgz",
+      "integrity": "sha512-CiGzLN9KgAvgZsnivND7rkA+AeJ9JB0ciPOD4U59GKbQP2iQl+olF1l76kJOupqidozfZ32ghwBEJDhnk9MEcw==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "@babel/parser": "^7.4.4",
+        "@babel/types": "^7.4.4"
+      }
+    },
+    "@babel/traverse": {
+      "version": "7.4.5",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.4.5.tgz",
+      "integrity": "sha512-Vc+qjynwkjRmIFGxy0KYoPj4FdVDxLej89kMHFsWScq999uX+pwcX4v9mWRjW0KcAYTPAuVQl2LKP1wEVLsp+A==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "@babel/generator": "^7.4.4",
+        "@babel/helper-function-name": "^7.1.0",
+        "@babel/helper-split-export-declaration": "^7.4.4",
+        "@babel/parser": "^7.4.5",
+        "@babel/types": "^7.4.4",
+        "debug": "^4.1.0",
+        "globals": "^11.1.0",
+        "lodash": "^4.17.11"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/types": {
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.4.4.tgz",
+      "integrity": "sha512-dOllgYdnEFOebhkKCjzSVFqw/PmmB8pH6RGOWkY4GsboQNd47b1fBThBSwlHAq9alF9vc1M3+6oqR47R50L0tQ==",
+      "dev": true,
+      "requires": {
+        "esutils": "^2.0.2",
+        "lodash": "^4.17.11",
+        "to-fast-properties": "^2.0.0"
+      }
+    },
     "@koa/cors": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/@koa/cors/-/cors-2.2.3.tgz",
@@ -64,6 +190,12 @@
         "array-back": "^3.0.1"
       }
     },
+    "ansi-regex": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+      "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+      "dev": true
+    },
     "ansi-styles": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -77,6 +209,21 @@
       "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
       "integrity": "sha1-q8av7tzqUugJzcA3au0845Y10X8="
     },
+    "append-transform": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/append-transform/-/append-transform-1.0.0.tgz",
+      "integrity": "sha512-P009oYkeHyU742iSZJzZZywj4QRJdnTWffaKuJQLablCZ1uz6/cW4yaRgcDaoQ+uwOxxnt0gRUcwfsNP2ri0gw==",
+      "dev": true,
+      "requires": {
+        "default-require-extensions": "^2.0.0"
+      }
+    },
+    "archy": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
+      "integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
+      "dev": true
+    },
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -104,11 +251,6 @@
       "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
     },
-    "async-limiter": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
-    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -149,9 +291,9 @@
       }
     },
     "bluebird": {
-      "version": "3.5.4",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.4.tgz",
-      "integrity": "sha512-FG+nFEZChJrbQ9tIccIfZJBz3J7mLrAhxakAbnrJWn8d7aKOC+LWifa0G+p4ZqKp4y13T7juYvdhq9NzKdsrjw==",
+      "version": "3.5.5",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.5.tgz",
+      "integrity": "sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w==",
       "dev": true
     },
     "brace-expansion": {
@@ -211,6 +353,24 @@
         }
       }
     },
+    "caching-transform": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/caching-transform/-/caching-transform-3.0.2.tgz",
+      "integrity": "sha512-Mtgcv3lh3U0zRii/6qVgQODdPA4G3zhG+jtbCWj39RXuUFTMzH0vcdMtaJS1jPowd+It2Pqr6y3NJMQqOqCE2w==",
+      "dev": true,
+      "requires": {
+        "hasha": "^3.0.0",
+        "make-dir": "^2.0.0",
+        "package-hash": "^3.0.0",
+        "write-file-atomic": "^2.4.2"
+      }
+    },
+    "camelcase": {
+      "version": "5.3.1",
+      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "dev": true
+    },
     "caseless": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
@@ -235,13 +395,15 @@
         "supports-color": "^5.3.0"
       }
     },
-    "cli-commands": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/cli-commands/-/cli-commands-0.4.0.tgz",
-      "integrity": "sha512-zAvJlR7roeMgpUIhMDYATYL90vz+9ffuyPr0+qq4LzcZ0Jq+gM+H1KdYKxerc6U2nhitiDEx79YiJlXdrooEOA==",
+    "cliui": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+      "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
+      "dev": true,
       "requires": {
-        "command-line-args": "^5.0.2",
-        "command-line-commands": "^2.0.1"
+        "string-width": "^3.1.0",
+        "strip-ansi": "^5.2.0",
+        "wrap-ansi": "^5.1.0"
       }
     },
     "co": {
@@ -309,29 +471,6 @@
         }
       }
     },
-    "command-line-commands": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/command-line-commands/-/command-line-commands-2.0.1.tgz",
-      "integrity": "sha512-m8c2p1DrNd2ruIAggxd/y6DgygQayf6r8RHwchhXryaLF8I6koYjoYroVP+emeROE9DXN5b9sP1Gh+WtvTTdtQ==",
-      "requires": {
-        "array-back": "^2.0.0"
-      },
-      "dependencies": {
-        "array-back": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/array-back/-/array-back-2.0.0.tgz",
-          "integrity": "sha512-eJv4pLLufP3g5kcZry0j6WXpIbzYw9GUB4mVJZno9wfwiBxbizTnHCw3VJb07cBihbFX48Y7oSrW9y+gt4glyw==",
-          "requires": {
-            "typical": "^2.6.1"
-          }
-        },
-        "typical": {
-          "version": "2.6.1",
-          "resolved": "https://registry.npmjs.org/typical/-/typical-2.6.1.tgz",
-          "integrity": "sha1-XAgOXWYcu+OCWdLnCjxyU+hziB0="
-        }
-      }
-    },
     "command-line-tool": {
       "version": "0.8.0",
       "resolved": "https://registry.npmjs.org/command-line-tool/-/command-line-tool-0.8.0.tgz",
@@ -418,6 +557,12 @@
       "integrity": "sha1-MOB/P49vf5s97oVPILLTnu4Ibeg=",
       "dev": true
     },
+    "commondir": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
+      "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
+      "dev": true
+    },
     "composite-class": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/composite-class/-/composite-class-0.3.0.tgz",
@@ -468,6 +613,15 @@
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.4.tgz",
       "integrity": "sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA=="
     },
+    "convert-source-map": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.6.0.tgz",
+      "integrity": "sha512-eFu7XigvxdZ1ETfbgPBohgyQ/Z++C0eEhTor0qRwBw9unw+L0/6V8wkSuGgzdThkiS5lSpdptOQPD8Ak40a+7A==",
+      "dev": true,
+      "requires": {
+        "safe-buffer": "~5.1.1"
+      }
+    },
     "cookies": {
       "version": "0.7.3",
       "resolved": "https://registry.npmjs.org/cookies/-/cookies-0.7.3.tgz",
@@ -501,12 +655,35 @@
         "request": "^2.86.0"
       }
     },
+    "cp-file": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/cp-file/-/cp-file-6.2.0.tgz",
+      "integrity": "sha512-fmvV4caBnofhPe8kOcitBwSn2f39QLjnAnGq3gO9dfd75mUytzKNZB1hde6QHunW2Rt+OwuBOMc3i1tNElbszA==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "make-dir": "^2.0.0",
+        "nested-error-stacks": "^2.0.0",
+        "pify": "^4.0.1",
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "create-mixin": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/create-mixin/-/create-mixin-1.1.1.tgz",
       "integrity": "sha512-z6QC4H0gSX81fUpvJ721IArB8rY449Oiu4bmI/AAn33AiSIerKh6d8azLb0mqgHU5aW+8rqeR4RGIu06dBFSZA==",
       "dev": true
     },
+    "cross-spawn": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-4.0.2.tgz",
+      "integrity": "sha1-e5JHYhwjrf3ThWAEqCPL45dCTUE=",
+      "dev": true,
+      "requires": {
+        "lru-cache": "^4.0.1",
+        "which": "^1.2.9"
+      }
+    },
     "dashdash": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
@@ -523,6 +700,12 @@
         "ms": "2.0.0"
       }
     },
+    "decamelize": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
+      "dev": true
+    },
     "deep-equal": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.0.1.tgz",
@@ -533,6 +716,15 @@
       "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
       "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA=="
     },
+    "default-require-extensions": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/default-require-extensions/-/default-require-extensions-2.0.0.tgz",
+      "integrity": "sha1-9fj7sYp9bVCyH2QfZJ67Uiz+JPc=",
+      "dev": true,
+      "requires": {
+        "strip-bom": "^3.0.0"
+      }
+    },
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
@@ -587,17 +779,47 @@
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
+    "emoji-regex": {
+      "version": "7.0.3",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+      "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==",
+      "dev": true
+    },
+    "end-of-stream": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.1.tgz",
+      "integrity": "sha512-1MkrZNvWTKCaigbn+W15elq2BB/L22nqrSY5DKlo3X6+vclJm8Bb5djXJBmEX6fS3+zCh/F4VBK5Z2KxJt4s2Q==",
+      "dev": true,
+      "requires": {
+        "once": "^1.4.0"
+      }
+    },
     "entities": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/entities/-/entities-1.1.2.tgz",
       "integrity": "sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==",
       "dev": true
     },
+    "error-ex": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/error-ex/-/error-ex-1.3.2.tgz",
+      "integrity": "sha512-7dFHNmqeFSEt2ZBsCriorKnn3Z2pj+fd9kmI6QoWw4//DL+icEBfc0U7qJCisqrTsKTjw4fNFy2pW9OqStD84g==",
+      "dev": true,
+      "requires": {
+        "is-arrayish": "^0.2.1"
+      }
+    },
     "error-inject": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/error-inject/-/error-inject-1.0.0.tgz",
       "integrity": "sha1-4rPZG1Su1nLzCdlQ0VSFD6EdTzc="
     },
+    "es6-error": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/es6-error/-/es6-error-4.1.1.tgz",
+      "integrity": "sha512-Um/+FxMr9CISWh0bi5Zv0iOD+4cFh5qLeks1qhAopKVAJw3drgKbKySikp7wGhDL0HPeaja0P5ULZrxLkniUVg==",
+      "dev": true
+    },
     "escape-html": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -614,11 +836,47 @@
       "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
       "dev": true
     },
+    "esutils": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz",
+      "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=",
+      "dev": true
+    },
     "etag": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
       "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
     },
+    "execa": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/execa/-/execa-1.0.0.tgz",
+      "integrity": "sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==",
+      "dev": true,
+      "requires": {
+        "cross-spawn": "^6.0.0",
+        "get-stream": "^4.0.0",
+        "is-stream": "^1.1.0",
+        "npm-run-path": "^2.0.0",
+        "p-finally": "^1.0.0",
+        "signal-exit": "^3.0.0",
+        "strip-eof": "^1.0.0"
+      },
+      "dependencies": {
+        "cross-spawn": {
+          "version": "6.0.5",
+          "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
+          "integrity": "sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==",
+          "dev": true,
+          "requires": {
+            "nice-try": "^1.0.4",
+            "path-key": "^2.0.1",
+            "semver": "^5.5.0",
+            "shebang-command": "^1.2.0",
+            "which": "^1.2.9"
+          }
+        }
+      }
+    },
     "extend": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
@@ -666,6 +924,17 @@
         }
       }
     },
+    "find-cache-dir": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/find-cache-dir/-/find-cache-dir-2.1.0.tgz",
+      "integrity": "sha512-Tq6PixE0w/VMFfCgbONnkiQIVol/JJL7nRMi20fqzA4NRs9AfeqMGeRdPi3wIhYkxjeBaWh2rxwapn5Tu3IqOQ==",
+      "dev": true,
+      "requires": {
+        "commondir": "^1.0.1",
+        "make-dir": "^2.0.0",
+        "pkg-dir": "^3.0.0"
+      }
+    },
     "find-replace": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/find-replace/-/find-replace-3.0.0.tgz",
@@ -674,6 +943,25 @@
         "array-back": "^3.0.1"
       }
     },
+    "find-up": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+      "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+      "dev": true,
+      "requires": {
+        "locate-path": "^3.0.0"
+      }
+    },
+    "foreground-child": {
+      "version": "1.5.6",
+      "resolved": "https://registry.npmjs.org/foreground-child/-/foreground-child-1.5.6.tgz",
+      "integrity": "sha1-T9ca0t/elnibmApcCilZN8svXOk=",
+      "dev": true,
+      "requires": {
+        "cross-spawn": "^4",
+        "signal-exit": "^3.0.0"
+      }
+    },
     "forever-agent": {
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
@@ -716,6 +1004,21 @@
         "obso": "^0.4.3"
       }
     },
+    "get-caller-file": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+      "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+      "dev": true
+    },
+    "get-stream": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
+      "integrity": "sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==",
+      "dev": true,
+      "requires": {
+        "pump": "^3.0.0"
+      }
+    },
     "getpass": {
       "version": "0.1.7",
       "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.7.tgz",
@@ -738,6 +1041,12 @@
         "path-is-absolute": "^1.0.0"
       }
     },
+    "globals": {
+      "version": "11.12.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
+      "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
+      "dev": true
+    },
     "graceful-fs": {
       "version": "4.1.15",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.15.tgz",
@@ -781,6 +1090,21 @@
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
       "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
     },
+    "hasha": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/hasha/-/hasha-3.0.0.tgz",
+      "integrity": "sha1-UqMvq4Vp1BymmmH/GiFPjrfIvTk=",
+      "dev": true,
+      "requires": {
+        "is-stream": "^1.0.1"
+      }
+    },
+    "hosted-git-info": {
+      "version": "2.7.1",
+      "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.7.1.tgz",
+      "integrity": "sha512-7T/BxH19zbcCTa8XkMlbK5lTo1WtgkFi3GvdWEyNuc4Vex7/9Dqbnpsf4JMydcfj9HCg4zUWFTL3Za6lapg5/w==",
+      "dev": true
+    },
     "http-assert": {
       "version": "1.4.1",
       "resolved": "https://registry.npmjs.org/http-assert/-/http-assert-1.4.1.tgz",
@@ -820,6 +1144,12 @@
         "safer-buffer": ">= 2.1.2 < 3"
       }
     },
+    "imurmurhash": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
+      "integrity": "sha1-khi5srkoojixPcT7a21XbyMUU+o=",
+      "dev": true
+    },
     "inflation": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/inflation/-/inflation-2.0.0.tgz",
@@ -840,11 +1170,35 @@
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
       "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
     },
+    "invert-kv": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-2.0.0.tgz",
+      "integrity": "sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA==",
+      "dev": true
+    },
+    "is-arrayish": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.2.1.tgz",
+      "integrity": "sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=",
+      "dev": true
+    },
+    "is-fullwidth-code-point": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+      "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+      "dev": true
+    },
     "is-generator-function": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/is-generator-function/-/is-generator-function-1.0.7.tgz",
       "integrity": "sha512-YZc5EwyO4f2kWCax7oegfuSr9mFz1ZvieNYBEjmukLxgXfBUbxAWGVF7GZf0zidYtoBl3WvC07YK0wT76a+Rtw=="
     },
+    "is-stream": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-1.1.0.tgz",
+      "integrity": "sha1-EtSj3U5o4Lec6428hBc66A2RykQ=",
+      "dev": true
+    },
     "is-typedarray": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
@@ -860,11 +1214,122 @@
       "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
       "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
     },
+    "isexe": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
+      "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
+      "dev": true
+    },
     "isstream": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
     },
+    "istanbul-lib-coverage": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.5.tgz",
+      "integrity": "sha512-8aXznuEPCJvGnMSRft4udDRDtb1V3pkQkMMI5LI+6HuQz5oQ4J2UFn1H82raA3qJtyOLkkwVqICBQkjnGtn5mA==",
+      "dev": true
+    },
+    "istanbul-lib-hook": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-hook/-/istanbul-lib-hook-2.0.7.tgz",
+      "integrity": "sha512-vrRztU9VRRFDyC+aklfLoeXyNdTfga2EI3udDGn4cZ6fpSXpHLV9X6CHvfoMCPtggg8zvDDmC4b9xfu0z6/llA==",
+      "dev": true,
+      "requires": {
+        "append-transform": "^1.0.0"
+      }
+    },
+    "istanbul-lib-instrument": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-instrument/-/istanbul-lib-instrument-3.3.0.tgz",
+      "integrity": "sha512-5nnIN4vo5xQZHdXno/YDXJ0G+I3dAm4XgzfSVTPLQpj/zAV2dV6Juy0yaf10/zrJOJeHoN3fraFe+XRq2bFVZA==",
+      "dev": true,
+      "requires": {
+        "@babel/generator": "^7.4.0",
+        "@babel/parser": "^7.4.3",
+        "@babel/template": "^7.4.0",
+        "@babel/traverse": "^7.4.3",
+        "@babel/types": "^7.4.0",
+        "istanbul-lib-coverage": "^2.0.5",
+        "semver": "^6.0.0"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.1.0.tgz",
+          "integrity": "sha512-kCqEOOHoBcFs/2Ccuk4Xarm/KiWRSLEX9CAZF8xkJ6ZPlIoTZ8V5f7J16vYLJqDbR7KrxTJpR2lqjIEm2Qx9cQ==",
+          "dev": true
+        }
+      }
+    },
+    "istanbul-lib-report": {
+      "version": "2.0.8",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-report/-/istanbul-lib-report-2.0.8.tgz",
+      "integrity": "sha512-fHBeG573EIihhAblwgxrSenp0Dby6tJMFR/HvlerBsrCTD5bkUuoNtn3gVh29ZCS824cGGBPn7Sg7cNk+2xUsQ==",
+      "dev": true,
+      "requires": {
+        "istanbul-lib-coverage": "^2.0.5",
+        "make-dir": "^2.1.0",
+        "supports-color": "^6.1.0"
+      },
+      "dependencies": {
+        "supports-color": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
+          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
+    "istanbul-lib-source-maps": {
+      "version": "3.0.6",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-source-maps/-/istanbul-lib-source-maps-3.0.6.tgz",
+      "integrity": "sha512-R47KzMtDJH6X4/YW9XTx+jrLnZnscW4VpNN+1PViSYTejLVPWv7oov+Duf8YQSPyVRUvueQqz1TcsC6mooZTXw==",
+      "dev": true,
+      "requires": {
+        "debug": "^4.1.1",
+        "istanbul-lib-coverage": "^2.0.5",
+        "make-dir": "^2.1.0",
+        "rimraf": "^2.6.3",
+        "source-map": "^0.6.1"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+          "dev": true
+        }
+      }
+    },
+    "istanbul-reports": {
+      "version": "2.2.6",
+      "resolved": "https://registry.npmjs.org/istanbul-reports/-/istanbul-reports-2.2.6.tgz",
+      "integrity": "sha512-SKi4rnMyLBKe0Jy2uUdx28h8oG7ph2PPuQPvIAh31d+Ci+lSiEu4C+h3oBPuJ9+mPKhOyW0M8gY4U5NM1WLeXA==",
+      "dev": true,
+      "requires": {
+        "handlebars": "^4.1.2"
+      }
+    },
+    "js-tokens": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+      "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+      "dev": true
+    },
     "js-yaml": {
       "version": "3.13.1",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
@@ -982,6 +1447,18 @@
         "walk-back": "^3.0.1"
       }
     },
+    "jsesc": {
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.2.tgz",
+      "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
+      "dev": true
+    },
+    "json-parse-better-errors": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz",
+      "integrity": "sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==",
+      "dev": true
+    },
     "json-schema": {
       "version": "0.2.3",
       "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
@@ -1194,24 +1671,14 @@
       }
     },
     "koa-send": {
-      "version": "4.1.3",
-      "resolved": "https://registry.npmjs.org/koa-send/-/koa-send-4.1.3.tgz",
-      "integrity": "sha512-3UetMBdaXSiw24qM2Mx5mKmxLKw5ZTPRjACjfhK6Haca55RKm9hr/uHDrkrxhSl5/S1CKI/RivZVIopiatZuTA==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/koa-send/-/koa-send-5.0.0.tgz",
+      "integrity": "sha512-90ZotV7t0p3uN9sRwW2D484rAaKIsD8tAVtypw/aBU+ryfV+fR2xrcAwhI8Wl6WRkojLUs/cB9SBSCuIb+IanQ==",
       "requires": {
-        "debug": "^2.6.3",
-        "http-errors": "^1.6.1",
-        "mz": "^2.6.0",
+        "debug": "^3.1.0",
+        "http-errors": "^1.6.3",
+        "mz": "^2.7.0",
         "resolve-path": "^1.4.0"
-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "requires": {
-            "ms": "2.0.0"
-          }
-        }
       }
     },
     "koa-static": {
@@ -1221,6 +1688,38 @@
       "requires": {
         "debug": "^3.1.0",
         "koa-send": "^4.1.3"
+      },
+      "dependencies": {
+        "koa-send": {
+          "version": "4.1.3",
+          "resolved": "https://registry.npmjs.org/koa-send/-/koa-send-4.1.3.tgz",
+          "integrity": "sha512-3UetMBdaXSiw24qM2Mx5mKmxLKw5ZTPRjACjfhK6Haca55RKm9hr/uHDrkrxhSl5/S1CKI/RivZVIopiatZuTA==",
+          "requires": {
+            "debug": "^2.6.3",
+            "http-errors": "^1.6.1",
+            "mz": "^2.6.0",
+            "resolve-path": "^1.4.0"
+          },
+          "dependencies": {
+            "debug": {
+              "version": "2.6.9",
+              "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+              "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+              "requires": {
+                "ms": "2.0.0"
+              }
+            }
+          }
+        }
+      }
+    },
+    "lcid": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/lcid/-/lcid-2.0.0.tgz",
+      "integrity": "sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==",
+      "dev": true,
+      "requires": {
+        "invert-kv": "^2.0.0"
       }
     },
     "lcov-parse": {
@@ -1238,29 +1737,44 @@
         "uc.micro": "^1.0.1"
       }
     },
-    "load-module": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/load-module/-/load-module-1.0.0.tgz",
-      "integrity": "sha512-FmoAJI/RM4vmvIRk65g/SFCnGQC9BbALY3zy38Z0cMllNnra1+iCdxAf051LVymzE60/FweOo9or9XJiGgFshg==",
+    "load-json-file": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-4.0.0.tgz",
+      "integrity": "sha1-L19Fq5HjMhYjT9U62rZo607AmTs=",
+      "dev": true,
       "requires": {
-        "array-back": "^2.0.0"
+        "graceful-fs": "^4.1.2",
+        "parse-json": "^4.0.0",
+        "pify": "^3.0.0",
+        "strip-bom": "^3.0.0"
       },
       "dependencies": {
-        "array-back": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/array-back/-/array-back-2.0.0.tgz",
-          "integrity": "sha512-eJv4pLLufP3g5kcZry0j6WXpIbzYw9GUB4mVJZno9wfwiBxbizTnHCw3VJb07cBihbFX48Y7oSrW9y+gt4glyw==",
-          "requires": {
-            "typical": "^2.6.1"
-          }
-        },
-        "typical": {
-          "version": "2.6.1",
-          "resolved": "https://registry.npmjs.org/typical/-/typical-2.6.1.tgz",
-          "integrity": "sha1-XAgOXWYcu+OCWdLnCjxyU+hziB0="
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "dev": true
         }
       }
     },
+    "load-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/load-module/-/load-module-2.0.0.tgz",
+      "integrity": "sha512-1cWxQTYoB77vrMj6feNV3kMb6PZtH8vUgLhSQow7RE8OgQCLjSUuScyYABbw5duPViIuEXfaVEte1LZ3t4rJAg==",
+      "requires": {
+        "array-back": "^3.1.0"
+      }
+    },
+    "locate-path": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+      "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+      "dev": true,
+      "requires": {
+        "p-locate": "^3.0.0",
+        "path-exists": "^3.0.0"
+      }
+    },
     "lodash": {
       "version": "4.17.11",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
@@ -1277,6 +1791,12 @@
       "resolved": "https://registry.npmjs.org/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz",
       "integrity": "sha1-soqmKIorn8ZRA1x3EfZathkDMaY="
     },
+    "lodash.flattendeep": {
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/lodash.flattendeep/-/lodash.flattendeep-4.4.0.tgz",
+      "integrity": "sha1-+wMJF/hqMTTlvJvsDWngAT3f7bI=",
+      "dev": true
+    },
     "lodash.omit": {
       "version": "4.5.0",
       "resolved": "https://registry.npmjs.org/lodash.omit/-/lodash.omit-4.5.0.tgz",
@@ -1305,26 +1825,34 @@
       "integrity": "sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==",
       "dev": true
     },
+    "lru-cache": {
+      "version": "4.1.5",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-4.1.5.tgz",
+      "integrity": "sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==",
+      "dev": true,
+      "requires": {
+        "pseudomap": "^1.0.2",
+        "yallist": "^2.1.2"
+      }
+    },
     "lws": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/lws/-/lws-1.3.2.tgz",
-      "integrity": "sha512-0JF2zD01FXVI19rpyEBKlmKuaJJ0dPhrudbbY4oEPh9+X835MLm0C/thAJCyDhJJ87aZ42trv9G+s/JErvojaQ==",
+      "version": "2.0.0-3",
+      "resolved": "https://registry.npmjs.org/lws/-/lws-2.0.0-3.tgz",
+      "integrity": "sha512-PMncs7nYX6JJgBvm9xmcXP3SFGtHv96VqHoFq3AOKEhXauHtcB9BwN3K4nx+MAFyOR6Qf29ekdiAfhJGqd5wrg==",
       "requires": {
-        "ansi-escape-sequences": "^4.0.1",
-        "array-back": "^3.0.1",
+        "ansi-escape-sequences": "^4.1.0",
+        "array-back": "^3.1.0",
         "byte-size": "^5.0.1",
-        "cli-commands": "^0.4.0",
-        "command-line-args": "^5.0.2",
+        "command-line-args": "^5.1.1",
         "command-line-usage": "^5.0.5",
-        "koa": "^2.6.2",
-        "load-module": "^1.0.0",
+        "koa": "^2.7.0",
+        "load-module": "^2.0.0",
         "lodash.assignwith": "^4.2.0",
         "node-version-matches": "^1.0.1",
-        "opn": "^5.4.0",
+        "open": "^6.3.0",
         "reduce-flatten": "^2.0.0",
-        "typical": "^3.0.0",
-        "walk-back": "^3.0.1",
-        "ws": "^5.2.1"
+        "typical": "^5.0.0",
+        "walk-back": "^3.0.1"
       }
     },
     "lws-basic-auth": {
@@ -1441,13 +1969,6 @@
         "path-to-regexp": "^3.0.0",
         "request": "^2.88.0",
         "stream-read-all": "^2.0.0"
-      },
-      "dependencies": {
-        "stream-read-all": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/stream-read-all/-/stream-read-all-2.0.0.tgz",
-          "integrity": "sha512-M4kMuu/EmTTaO/Btsw4DTx6wEyTr+NcX8MIUuiTCzoUBc3twa/RA6OgpnSISjdvSOW5KBVStVggtMYnBzGn+CQ=="
-        }
       }
     },
     "lws-spa": {
@@ -1456,19 +1977,6 @@
       "integrity": "sha512-c2FX1A57t/ha7zi6ygeq0Ma7czTGuLfnRAx3bJxpae1gXcCoXQhK1W16p/sbLvblOKm/ZWqD459E1NIzth+ZtQ==",
       "requires": {
         "koa-send": "^5.0.0"
-      },
-      "dependencies": {
-        "koa-send": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/koa-send/-/koa-send-5.0.0.tgz",
-          "integrity": "sha512-90ZotV7t0p3uN9sRwW2D484rAaKIsD8tAVtypw/aBU+ryfV+fR2xrcAwhI8Wl6WRkojLUs/cB9SBSCuIb+IanQ==",
-          "requires": {
-            "debug": "^3.1.0",
-            "http-errors": "^1.6.3",
-            "mz": "^2.7.0",
-            "resolve-path": "^1.4.0"
-          }
-        }
       }
     },
     "lws-static": {
@@ -1479,6 +1987,25 @@
         "koa-static": "^4.0.2"
       }
     },
+    "make-dir": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-2.1.0.tgz",
+      "integrity": "sha512-LS9X+dc8KLxXCb8dni79fLIIUA5VyZoyjSMCwTluaXA0o27cCK0bhXkpgw+sTXVpPy/lSO57ilRixqk0vDmtRA==",
+      "dev": true,
+      "requires": {
+        "pify": "^4.0.1",
+        "semver": "^5.6.0"
+      }
+    },
+    "map-age-cleaner": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz",
+      "integrity": "sha512-bJzx6nMoP6PDLPBFmg7+xRKeFZvFboMrGlxmNj9ClvX53KrmvM5bXFXEWjbz4cz1AFn+jWJ9z/DJSz7hrs0w3w==",
+      "dev": true,
+      "requires": {
+        "p-defer": "^1.0.0"
+      }
+    },
     "markdown-it": {
       "version": "8.4.2",
       "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.2.tgz",
@@ -1493,9 +2020,9 @@
       }
     },
     "markdown-it-anchor": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/markdown-it-anchor/-/markdown-it-anchor-5.0.2.tgz",
-      "integrity": "sha512-AFM/woBI8QDJMS/9+MmsBMT5/AR+ImfOsunQZTZhzcTmna3rIzAzbOh5E0l6mlFM/i9666BpUtkqQ9bS7WApCg==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/markdown-it-anchor/-/markdown-it-anchor-5.1.0.tgz",
+      "integrity": "sha512-wJOmyXzDUxI8iuowEsaQAKMQBButhSw8j64SpgcaL75QZYC/OSZV66Fnr50lfMLYNGtV0rJdw2fmLwXCT6T+bw==",
       "dev": true
     },
     "marked": {
@@ -1515,6 +2042,26 @@
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
       "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
     },
+    "mem": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/mem/-/mem-4.3.0.tgz",
+      "integrity": "sha512-qX2bG48pTqYRVmDB37rn/6PT7LcR8T7oAX3bf99u1Tt1nzxYfxkgqDwUwolPlXweM0XzBOBFzSx4kfp7KP1s/w==",
+      "dev": true,
+      "requires": {
+        "map-age-cleaner": "^0.1.1",
+        "mimic-fn": "^2.0.0",
+        "p-is-promise": "^2.0.0"
+      }
+    },
+    "merge-source-map": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/merge-source-map/-/merge-source-map-1.1.0.tgz",
+      "integrity": "sha512-Qkcp7P2ygktpMPh2mCQZaf3jhN6D3Z/qVZHSdWvQ+2Ef5HgRAPBO57A77+ENm0CPx2+1Ce/MYKi3ymqdfuqibw==",
+      "dev": true,
+      "requires": {
+        "source-map": "^0.6.1"
+      }
+    },
     "methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
@@ -1533,6 +2080,12 @@
         "mime-db": "1.40.0"
       }
     },
+    "mimic-fn": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-2.1.0.tgz",
+      "integrity": "sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==",
+      "dev": true
+    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
@@ -1627,6 +2180,18 @@
       "integrity": "sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==",
       "dev": true
     },
+    "nested-error-stacks": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/nested-error-stacks/-/nested-error-stacks-2.1.0.tgz",
+      "integrity": "sha512-AO81vsIO1k1sM4Zrd6Hu7regmJN1NSiAja10gc4bX3F0wd+9rQmcuHQaHVQCYIEC8iFXnE+mavh23GOt7wBgug==",
+      "dev": true
+    },
+    "nice-try": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/nice-try/-/nice-try-1.0.5.tgz",
+      "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==",
+      "dev": true
+    },
     "node-fetch": {
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
@@ -1641,6 +2206,60 @@
         "semver": "^5.6.0"
       }
     },
+    "normalize-package-data": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/normalize-package-data/-/normalize-package-data-2.5.0.tgz",
+      "integrity": "sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==",
+      "dev": true,
+      "requires": {
+        "hosted-git-info": "^2.1.4",
+        "resolve": "^1.10.0",
+        "semver": "2 || 3 || 4 || 5",
+        "validate-npm-package-license": "^3.0.1"
+      }
+    },
+    "npm-run-path": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+      "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+      "dev": true,
+      "requires": {
+        "path-key": "^2.0.0"
+      }
+    },
+    "nyc": {
+      "version": "14.1.1",
+      "resolved": "https://registry.npmjs.org/nyc/-/nyc-14.1.1.tgz",
+      "integrity": "sha512-OI0vm6ZGUnoGZv/tLdZ2esSVzDwUC88SNs+6JoSOMVxA+gKMB8Tk7jBwgemLx4O40lhhvZCVw1C+OYLOBOPXWw==",
+      "dev": true,
+      "requires": {
+        "archy": "^1.0.0",
+        "caching-transform": "^3.0.2",
+        "convert-source-map": "^1.6.0",
+        "cp-file": "^6.2.0",
+        "find-cache-dir": "^2.1.0",
+        "find-up": "^3.0.0",
+        "foreground-child": "^1.5.6",
+        "glob": "^7.1.3",
+        "istanbul-lib-coverage": "^2.0.5",
+        "istanbul-lib-hook": "^2.0.7",
+        "istanbul-lib-instrument": "^3.3.0",
+        "istanbul-lib-report": "^2.0.8",
+        "istanbul-lib-source-maps": "^3.0.6",
+        "istanbul-reports": "^2.2.4",
+        "js-yaml": "^3.13.1",
+        "make-dir": "^2.1.0",
+        "merge-source-map": "^1.1.0",
+        "resolve-from": "^4.0.0",
+        "rimraf": "^2.6.3",
+        "signal-exit": "^3.0.2",
+        "spawn-wrap": "^1.4.2",
+        "test-exclude": "^5.2.3",
+        "uuid": "^3.3.2",
+        "yargs": "^13.2.2",
+        "yargs-parser": "^13.0.0"
+      }
+    },
     "oauth-sign": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
@@ -1696,10 +2315,10 @@
       "resolved": "https://registry.npmjs.org/only/-/only-0.0.2.tgz",
       "integrity": "sha1-Kv3oTQPlC5qO3EROMGEKcCle37Q="
     },
-    "opn": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/opn/-/opn-5.5.0.tgz",
-      "integrity": "sha512-PqHpggC9bLV0VeWcdKhkpxY+3JTzetLSqTCWL/z/tFIbI6G8JCjondXklT1JinczLz2Xib62sSp0T/gKT4KksA==",
+    "open": {
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/open/-/open-6.3.0.tgz",
+      "integrity": "sha512-6AHdrJxPvAXIowO/aIaeHZ8CeMdDf7qCyRNq8NwJpinmCdXhz+NZR7ie1Too94lpciCDsG+qHGO9Mt0svA4OqA==",
       "requires": {
         "is-wsl": "^1.1.0"
       }
@@ -1722,35 +2341,182 @@
         }
       }
     },
+    "os-homedir": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz",
+      "integrity": "sha1-/7xJiDNuDoM94MFox+8VISGqf7M=",
+      "dev": true
+    },
+    "os-locale": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-3.1.0.tgz",
+      "integrity": "sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==",
+      "dev": true,
+      "requires": {
+        "execa": "^1.0.0",
+        "lcid": "^2.0.0",
+        "mem": "^4.0.0"
+      }
+    },
+    "p-defer": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/p-defer/-/p-defer-1.0.0.tgz",
+      "integrity": "sha1-n26xgvbJqozXQwBKfU+WsZaw+ww=",
+      "dev": true
+    },
+    "p-finally": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
+      "integrity": "sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=",
+      "dev": true
+    },
+    "p-is-promise": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/p-is-promise/-/p-is-promise-2.1.0.tgz",
+      "integrity": "sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==",
+      "dev": true
+    },
+    "p-limit": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.2.0.tgz",
+      "integrity": "sha512-pZbTJpoUsCzV48Mc9Nh51VbwO0X9cuPFE8gYwx9BTCt9SF8/b7Zljd2fVgOxhIF/HDTKgpVzs+GPhyKfjLLFRQ==",
+      "dev": true,
+      "requires": {
+        "p-try": "^2.0.0"
+      }
+    },
+    "p-locate": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+      "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+      "dev": true,
+      "requires": {
+        "p-limit": "^2.0.0"
+      }
+    },
+    "p-try": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+      "dev": true
+    },
+    "package-hash": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/package-hash/-/package-hash-3.0.0.tgz",
+      "integrity": "sha512-lOtmukMDVvtkL84rJHI7dpTYq+0rli8N2wlnqUcBuDWCfVhRUfOmnR9SsoHFMLpACvEV60dX7rd0rFaYDZI+FA==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.15",
+        "hasha": "^3.0.0",
+        "lodash.flattendeep": "^4.4.0",
+        "release-zalgo": "^1.0.0"
+      }
+    },
+    "parse-json": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+      "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+      "dev": true,
+      "requires": {
+        "error-ex": "^1.3.1",
+        "json-parse-better-errors": "^1.0.1"
+      }
+    },
     "parseurl": {
       "version": "1.3.3",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
       "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
     },
+    "path-exists": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+      "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
+      "dev": true
+    },
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
       "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
     },
+    "path-key": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+      "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=",
+      "dev": true
+    },
+    "path-parse": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
+      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+      "dev": true
+    },
     "path-to-regexp": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-3.0.0.tgz",
       "integrity": "sha512-ZOtfhPttCrqp2M1PBBH4X13XlvnfhIwD7yCLx+GoGoXRPQyxGOTdQMpIzPSPKXAJT/JQrdfFrgdJOyAzvgpQ9A=="
     },
+    "path-type": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/path-type/-/path-type-3.0.0.tgz",
+      "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
+      "dev": true,
+      "requires": {
+        "pify": "^3.0.0"
+      },
+      "dependencies": {
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "dev": true
+        }
+      }
+    },
     "performance-now": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-2.1.0.tgz",
       "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
     },
+    "pify": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
+      "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+      "dev": true
+    },
+    "pkg-dir": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-3.0.0.tgz",
+      "integrity": "sha512-/E57AYkoeQ25qkxMj5PBOVgF8Kiu/h7cYS30Z5+R7WaiCCBfLq58ZI/dSeaEKb9WVJV5n/03QwrN3IeWIFllvw==",
+      "dev": true,
+      "requires": {
+        "find-up": "^3.0.0"
+      }
+    },
     "process-nextick-args": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
       "integrity": "sha512-MtEC1TqN0EU5nephaJ4rAtThHtC86dNN9qCuEhtshvpVBkAW5ZO7BASN9REnF9eoXGcRub+pFuKEpOHE+HbEMw=="
     },
+    "pseudomap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
+      "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
+      "dev": true
+    },
     "psl": {
-      "version": "1.1.31",
-      "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.31.tgz",
-      "integrity": "sha512-/6pt4+C+T+wZUieKR620OpzN/LlnNKuWjy1iFLQ/UG35JqHlR/89MP1d96dUfkf6Dne3TuLQzOYEYshJ+Hx8mw=="
+      "version": "1.1.32",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.32.tgz",
+      "integrity": "sha512-MHACAkHpihU/REGGPLj4sEfc/XKW2bheigvHO1dUqjaKigMp1C8+WLQYRGgeKFMsw5PMfegZcaN8IDXK/cD0+g=="
+    },
+    "pump": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
+      "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+      "dev": true,
+      "requires": {
+        "end-of-stream": "^1.1.0",
+        "once": "^1.3.1"
+      }
     },
     "punycode": {
       "version": "2.1.1",
@@ -1779,6 +2545,27 @@
         "unpipe": "1.0.0"
       }
     },
+    "read-pkg": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
+      "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
+      "dev": true,
+      "requires": {
+        "load-json-file": "^4.0.0",
+        "normalize-package-data": "^2.3.2",
+        "path-type": "^3.0.0"
+      }
+    },
+    "read-pkg-up": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-4.0.0.tgz",
+      "integrity": "sha512-6etQSH7nJGsK0RbG/2TeDzZFa8shjQ1um+SwQQ5cwKy0dhSXdOncEhb1CPpvQG4h7FyOV6EB6YlV0yJvZQNAkA==",
+      "dev": true,
+      "requires": {
+        "find-up": "^3.0.0",
+        "read-pkg": "^3.0.0"
+      }
+    },
     "readable-stream": {
       "version": "2.3.6",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
@@ -1876,6 +2663,15 @@
         }
       }
     },
+    "release-zalgo": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/release-zalgo/-/release-zalgo-1.0.0.tgz",
+      "integrity": "sha1-CXALflB0Mpc5Mw5TXFqQ+2eFFzA=",
+      "dev": true,
+      "requires": {
+        "es6-error": "^4.0.1"
+      }
+    },
     "request": {
       "version": "2.88.0",
       "resolved": "https://registry.npmjs.org/request/-/request-2.88.0.tgz",
@@ -1910,6 +2706,18 @@
         }
       }
     },
+    "require-directory": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
+      "integrity": "sha1-jGStX9MNqxyXbiNE/+f3kqam30I=",
+      "dev": true
+    },
+    "require-main-filename": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
+      "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+      "dev": true
+    },
     "requizzle": {
       "version": "0.2.2",
       "resolved": "https://registry.npmjs.org/requizzle/-/requizzle-0.2.2.tgz",
@@ -1919,6 +2727,21 @@
         "lodash": "^4.17.11"
       }
     },
+    "resolve": {
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.11.0.tgz",
+      "integrity": "sha512-WL2pBDjqT6pGUNSUzMw00o4T7If+z4H2x3Gz893WoUQ5KW8Vr9txp00ykiP16VBaZF5+j/OcXJHZ9+PCvdiDKw==",
+      "dev": true,
+      "requires": {
+        "path-parse": "^1.0.6"
+      }
+    },
+    "resolve-from": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
+      "integrity": "sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==",
+      "dev": true
+    },
     "resolve-path": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/resolve-path/-/resolve-path-1.4.0.tgz",
@@ -1946,6 +2769,15 @@
         }
       }
     },
+    "rimraf": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
+      "integrity": "sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.1.3"
+      }
+    },
     "safe-buffer": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
@@ -2001,11 +2833,38 @@
         }
       }
     },
+    "set-blocking": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
+      "integrity": "sha1-BF+XgtARrppoA93TgrJDkrPYkPc=",
+      "dev": true
+    },
     "setprototypeof": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
       "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
     },
+    "shebang-command": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+      "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+      "dev": true,
+      "requires": {
+        "shebang-regex": "^1.0.0"
+      }
+    },
+    "shebang-regex": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+      "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
+      "dev": true
+    },
+    "signal-exit": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
+      "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
+      "dev": true
+    },
     "sort-array": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/sort-array/-/sort-array-2.0.0.tgz",
@@ -2040,6 +2899,52 @@
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
       "dev": true
     },
+    "spawn-wrap": {
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/spawn-wrap/-/spawn-wrap-1.4.2.tgz",
+      "integrity": "sha512-vMwR3OmmDhnxCVxM8M+xO/FtIp6Ju/mNaDfCMMW7FDcLRTPFWUswec4LXJHTJE2hwTI9O0YBfygu4DalFl7Ylg==",
+      "dev": true,
+      "requires": {
+        "foreground-child": "^1.5.6",
+        "mkdirp": "^0.5.0",
+        "os-homedir": "^1.0.1",
+        "rimraf": "^2.6.2",
+        "signal-exit": "^3.0.2",
+        "which": "^1.3.0"
+      }
+    },
+    "spdx-correct": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
+      "integrity": "sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==",
+      "dev": true,
+      "requires": {
+        "spdx-expression-parse": "^3.0.0",
+        "spdx-license-ids": "^3.0.0"
+      }
+    },
+    "spdx-exceptions": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
+      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
+      "dev": true
+    },
+    "spdx-expression-parse": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz",
+      "integrity": "sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==",
+      "dev": true,
+      "requires": {
+        "spdx-exceptions": "^2.1.0",
+        "spdx-license-ids": "^3.0.0"
+      }
+    },
+    "spdx-license-ids": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.4.tgz",
+      "integrity": "sha512-7j8LYJLeY/Yb6ACbQ7F76qy5jHkp0U6jgBfJsk97bwWlVUnUWsAgpyaCvo17h0/RQGnQ036tVDomiwoI4pDkQA==",
+      "dev": true
+    },
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -2135,6 +3040,11 @@
         }
       }
     },
+    "stream-read-all": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/stream-read-all/-/stream-read-all-2.0.0.tgz",
+      "integrity": "sha512-M4kMuu/EmTTaO/Btsw4DTx6wEyTr+NcX8MIUuiTCzoUBc3twa/RA6OgpnSISjdvSOW5KBVStVggtMYnBzGn+CQ=="
+    },
     "stream-slice": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/stream-slice/-/stream-slice-0.1.2.tgz",
@@ -2154,6 +3064,17 @@
         "readable-stream": "2"
       }
     },
+    "string-width": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+      "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+      "dev": true,
+      "requires": {
+        "emoji-regex": "^7.0.1",
+        "is-fullwidth-code-point": "^2.0.0",
+        "strip-ansi": "^5.1.0"
+      }
+    },
     "string_decoder": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
@@ -2162,6 +3083,27 @@
         "safe-buffer": "~5.1.0"
       }
     },
+    "strip-ansi": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+      "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "^4.1.0"
+      }
+    },
+    "strip-bom": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+      "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+      "dev": true
+    },
+    "strip-eof": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
+      "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=",
+      "dev": true
+    },
     "strip-json-comments": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.0.1.tgz",
@@ -2215,6 +3157,18 @@
       "integrity": "sha1-JLFUOXOrRCiW2a02fdnL2/r+kYs=",
       "dev": true
     },
+    "test-exclude": {
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-5.2.3.tgz",
+      "integrity": "sha512-M+oxtseCFO3EDtAaGH7iiej3CBkzXqFMbzqYAACdzKui4eZA+pq3tZEwChvOdNfa7xxy8BfbmgJSIr43cC/+2g==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.1.3",
+        "minimatch": "^3.0.4",
+        "read-pkg-up": "^4.0.0",
+        "require-main-filename": "^2.0.0"
+      }
+    },
     "test-object-model": {
       "version": "0.4.4",
       "resolved": "https://registry.npmjs.org/test-object-model/-/test-object-model-0.4.4.tgz",
@@ -2226,14 +3180,6 @@
         "fsm-base": "^0.4.4",
         "race-timeout-anywhere": "^0.1.1",
         "typical": "^5.0.0"
-      },
-      "dependencies": {
-        "typical": {
-          "version": "5.0.0",
-          "resolved": "https://registry.npmjs.org/typical/-/typical-5.0.0.tgz",
-          "integrity": "sha512-EiYNG3wi45n7ZvDJaU/ekW8OiAJ0EfYNq8tQJUMVok5k8+g7mj54pFWOXFsstmQoVHfy4CjzgNgJtGUAVR8kFQ==",
-          "dev": true
-        }
       }
     },
     "test-runner": {
@@ -2310,6 +3256,12 @@
       "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
       "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
     },
+    "to-fast-properties": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+      "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+      "dev": true
+    },
     "toidentifier": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -2331,6 +3283,12 @@
         }
       }
     },
+    "trim-right": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
+      "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=",
+      "dev": true
+    },
     "tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
@@ -2354,9 +3312,9 @@
       }
     },
     "typical": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/typical/-/typical-3.0.2.tgz",
-      "integrity": "sha512-uvJvOMwAheCYrxDUsqkMPpYk7t1/R+4VQnBZ3wzkaA6QRQzXxG6+/yA6VGDtK+bgzCxh6Vk5arJ7TG0Gf8GN1w=="
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/typical/-/typical-5.0.0.tgz",
+      "integrity": "sha512-EiYNG3wi45n7ZvDJaU/ekW8OiAJ0EfYNq8tQJUMVok5k8+g7mj54pFWOXFsstmQoVHfy4CjzgNgJtGUAVR8kFQ=="
     },
     "uc.micro": {
       "version": "1.0.6",
@@ -2365,9 +3323,9 @@
       "dev": true
     },
     "uglify-js": {
-      "version": "3.5.13",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.5.13.tgz",
-      "integrity": "sha512-Lho+IJlquX6sdJgyKSJx/M9y4XbDd3ekPjD8S6HYmT5yVSwDtlSuca2w5hV4g2dIsp0Y/4orbfWxKexodmFv7w==",
+      "version": "3.5.15",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.5.15.tgz",
+      "integrity": "sha512-fe7aYFotptIddkwcm6YuA0HmknBZ52ZzOsUxZEdhhkSsz7RfjHDX2QDxwKTiv4JQ5t5NhfmpgAK+J7LiDhKSqg==",
       "dev": true,
       "optional": true,
       "requires": {
@@ -2404,6 +3362,16 @@
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
       "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
     },
+    "validate-npm-package-license": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+      "dev": true,
+      "requires": {
+        "spdx-correct": "^3.0.0",
+        "spdx-expression-parse": "^3.0.0"
+      }
+    },
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
@@ -2424,6 +3392,21 @@
       "resolved": "https://registry.npmjs.org/walk-back/-/walk-back-3.0.1.tgz",
       "integrity": "sha512-umiNB2qLO731Sxbp6cfZ9pwURJzTnftxE4Gc7hq8n/ehkuXC//s9F65IEIJA2ZytQZ1ZOsm/Fju4IWx0bivkUQ=="
     },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+      "dev": true
+    },
     "wordwrap": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
@@ -2451,18 +3434,32 @@
         }
       }
     },
+    "wrap-ansi": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+      "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+      "dev": true,
+      "requires": {
+        "ansi-styles": "^3.2.0",
+        "string-width": "^3.0.0",
+        "strip-ansi": "^5.0.0"
+      }
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
     },
-    "ws": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.2.tgz",
-      "integrity": "sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==",
+    "write-file-atomic": {
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.4.3.tgz",
+      "integrity": "sha512-GaETH5wwsX+GcnzhPgKcKjJ6M2Cq3/iZp1WyY/X1CSqrW+jVNM9Y7D8EC2sM4ZG/V8wZlSniJnCKWPmBYAucRQ==",
+      "dev": true,
       "requires": {
-        "async-limiter": "~1.0.0"
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "signal-exit": "^3.0.2"
       }
     },
     "xmlcreate": {
@@ -2471,6 +3468,47 @@
       "integrity": "sha512-MjGsXhKG8YjTKrDCXseFo3ClbMGvUD4en29H2Cev1dv4P/chlpw6KdYmlCWDkhosBVKRDjM836+3e3pm1cBNJA==",
       "dev": true
     },
+    "y18n": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "13.2.4",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.2.4.tgz",
+      "integrity": "sha512-HG/DWAJa1PAnHT9JAhNa8AbAv3FPaiLzioSjCcmuXXhP8MlpHO5vwls4g4j6n30Z74GVQj8Xa62dWVx1QCGklg==",
+      "dev": true,
+      "requires": {
+        "cliui": "^5.0.0",
+        "find-up": "^3.0.0",
+        "get-caller-file": "^2.0.1",
+        "os-locale": "^3.1.0",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^3.0.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^13.1.0"
+      }
+    },
+    "yargs-parser": {
+      "version": "13.1.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.0.tgz",
+      "integrity": "sha512-Yq+32PrijHRri0vVKQEm+ys8mbqWjLiwQkMFNXEENutzLPP0bE4Lcd4iA3OQY5HF+GD3xXxf0MEHb8E4/SA3AA==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      }
+    },
     "ylru": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/ylru/-/ylru-1.2.1.tgz",
diff --git a/package.json b/package.json
index 4f9198b..578e7df 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "index.js"
   ],
   "dependencies": {
-    "lws": "^1.3.2",
+    "lws": "^2.0.0-3",
     "lws-basic-auth": "^0.1.1",
     "lws-blacklist": "^1.0.0",
     "lws-body-parser": "^0.2.4",
@@ -58,6 +58,7 @@
     "coveralls": "^3.0.3",
     "jsdoc-to-markdown": "^5.0.0",
     "node-fetch": "^2.6.0",
+    "nyc": "^14.1.1",
     "test-runner": "^0.6.0"
   }
 }
diff --git a/test/cli.js b/test/cli.js
index 622c055..7e49af1 100644
--- a/test/cli.js
+++ b/test/cli.js
@@ -1,6 +1,6 @@
 const Tom = require('test-runner').Tom
 const a = require('assert')
-const CliApp = require('../lib/cli-app')
+const WsCli = require('../lib/cli-app')
 const fetch = require('node-fetch')
 
 const tom = module.exports = new Tom('cli')
@@ -9,7 +9,8 @@ tom.test('cli.run', async function () {
   const port = 7500 + this.index
   const origArgv = process.argv.slice()
   process.argv = [ 'node', 'something', '--port', `${port}` ]
-  const server = CliApp.run()
+  const cli = new WsCli({ logError: function () {} })
+  const server = cli.start()
   process.argv = origArgv
   const response = await fetch(`http://127.0.0.1:${port}/`)
   server.close()
@@ -20,7 +21,8 @@ tom.test('cli.run: bad option', async function () {
   const origArgv = process.argv.slice()
   process.argv = [ 'node', 'something', '--should-fail' ]
   const exitCode = process.exitCode
-  const server = CliApp.run()
+  const cli = new WsCli({ logError: function () {} })
+  const server = cli.start()
   if (!exitCode) process.exitCode = 0
   process.argv = origArgv
   a.strictEqual(server, undefined)
@@ -29,20 +31,28 @@ tom.test('cli.run: bad option', async function () {
 tom.test('cli.run: --help', async function () {
   const origArgv = process.argv.slice()
   process.argv = [ 'node', 'something', '--help' ]
-  CliApp.run()
+  const cli = new WsCli({ log: function () {} })
+  cli.start()
   process.argv = origArgv
 })
 
 tom.test('cli.run: --version', async function () {
   const origArgv = process.argv.slice()
   process.argv = [ 'node', 'something', '--version' ]
-  CliApp.run()
+  let logMsg = ''
+  const cli = new WsCli({ log: function (msg) { logMsg = msg } })
+  cli.start()
+  const pkg = require('../package.json')
+  a.strictEqual(logMsg.trim(), pkg.version)
   process.argv = origArgv
 })
 
-tom.test('cli.run: middleware-list', async function () {
+tom.test('cli.run: default-stack', async function () {
   const origArgv = process.argv.slice()
-  process.argv = [ 'node', 'something', 'middleware-list' ]
-  CliApp.run()
+  process.argv = [ 'node', 'something', '--default-stack' ]
+  let logMsg = ''
+  const cli = new WsCli({ log: function (msg) { logMsg = msg } })
+  cli.start()
+  a.ok(/lws-rewrite/.test(logMsg))
   process.argv = origArgv
 })