diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..3a264c22
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,22 @@
+Change Log
+==========
+
+`apns2` follows [Semantic Versioning](http://semver.org/)
+
+---
+
+## [4.0.0](https://github.com/AndrewBarba/apns2/releases/tag/4.0.0)
+
+1. Remove support for Node versions less than v8.10
+2. High-performance connection pool using [tarn](https://github.com/vincit/tarn.js)
+3. More friendly require API, see README for updated usage
+
+## [3.0.1](https://github.com/AndrewBarba/apns2/releases/tag/3.0.1)
+
+1. Fix Typescript definitions
+
+## [3.0.0](https://github.com/AndrewBarba/apns2/releases/tag/3.0.1)
+
+1. Introduces support for the native `http2` module in Node.js v8.4.0 or later with fall back to `node-spdy` in earlier versions of Node.js.
+
+To use the new `http2` library you must start your node process with `node --expose-http2` and apns2 will automatically use the native module. Later versions of Node.js may expose the native module without the need for a command line flag. In this case, apns2 will automatically use the native module without any additional steps on your end.
diff --git a/Makefile b/Makefile
deleted file mode 100644
index ad3f33b3..00000000
--- a/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-lint:
-	./node_modules/eslint/bin/eslint.js ./
-
-test-all: test-http2 test-spdy
-
-test-http2:
-	@NODE_ENV=test \
-	node --expose-http2 \
-	./node_modules/.bin/_mocha \
-	--slow 2000 \
-	--timeout 20000 \
-	./test/test.js
-
-test-spdy:
-	@NODE_ENV=test \
-	node \
-	./node_modules/.bin/_mocha \
-	--slow 2000 \
-	--timeout 20000 \
-	./test/test.js
diff --git a/README.md b/README.md
index 59e25cd9..bca67b22 100644
--- a/README.md
+++ b/README.md
@@ -6,9 +6,7 @@ APNS2
 
 Node client for connecting to Apple's Push Notification Service using the new HTTP/2 protocol with JSON web tokens.
 
-> Now uses the native `http2` module in Node.js v8.4.0 when exposed with `--expose-http2`
-
-> On earlier versions of Node.js we fallback to the `node-spdy` module
+> Now uses the native `http2` module in Node.js v8.10 or later
 
 ---
 
@@ -17,14 +15,14 @@ Node client for connecting to Apple's Push Notification Service using the new HT
 Create an APNS client using a signing key:
 
 ```javascript
-const APNS = require('apns2');
+const { APNS } = require('apns2')
 
 let client = new APNS({
   team: `TFLP87PW54`,
   keyId: `123ABC456`,
   signingKey: fs.readFileSync(`${__dirname}/path/to/auth.p8`),
   defaultTopic: `com.tablelist.Tablelist`
-});
+})
 ```
 
 ## Sending Notifications
@@ -34,34 +32,34 @@ let client = new APNS({
 Send a basic notification with message:
 
 ```javascript
-const { BasicNotification } = APNS;
+const { BasicNotification } = require('apns2')
 
-let bn = new BasicNotification(deviceToken, 'Hello, World');
+let bn = new BasicNotification(deviceToken, 'Hello, World')
 
 client.send(bn).then(() => {
   // sent successfully
 }).catch(err => {
-  console.error(err.reason);
-});
+  console.error(err.reason)
+})
 ```
 
 Send a basic notification with message and options:
 
 ```javascript
-const { BasicNotification } = APNS;
+const { BasicNotification } = require('apns2')
 
 let bn = new BasicNotification(deviceToken, 'Hello, World', {
   badge: 4,
   data: {
     userId: user.getUserId
   }
-});
+})
 
 client.send(bn).then(() => {
   // sent successfully
 }).catch(err => {
-  console.error(err.reason);
-});
+  console.error(err.reason)
+})
 ```
 
 #### Silent
@@ -69,15 +67,15 @@ client.send(bn).then(() => {
 Send a silent notification using `content-available` key:
 
 ```javascript
-const { SilentNotification } = APNS;
+const { SilentNotification } = require('apns2')
 
-let sn = new SilentNotification(deviceToken);
+let sn = new SilentNotification(deviceToken)
 
 client.send(sn).then(() => {
   // sent successfully
 }).catch(err => {
-  console.error(err.reason);
-});
+  console.error(err.reason)
+})
 ```
 
 Note: [Apple recommends](https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/TheNotificationPayload.html#//apple_ref/doc/uid/TP40008194-CH107-SW1) that no options other than the `content-available` flag be sent in order for a notification to truly be silent and wake up your app in the background. Therefore this class does not accept any additional options in the constructor.
@@ -87,17 +85,17 @@ Note: [Apple recommends](https://developer.apple.com/library/ios/documentation/N
 For complete control over the push notification packet use the base `Notification` class:
 
 ```javascript
-const { Notification } = APNS;
+const { Notification } = require('apns2')
 
 let notification = new Notification(deviceToken, {
   aps: { ... }
-});
+})
 
 client.send(notification).then(() => {
   // sent successfully
 }).catch(err => {
-  console.error(err.reason);
-});
+  console.error(err.reason)
+})
 ```
 
 Available options can be found at [APNS Payload Options](https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/PayloadKeyReference.html#//apple_ref/doc/uid/TP40008194-CH17-SW1)
@@ -109,19 +107,19 @@ All errors are defined in `./lib/errors.js` and come directly from [APNS Table 8
 You can easily listen for these errors by attaching an error handler to the APNS client:
 
 ```javascript
-const errors = APNS.errors;
+const { Errors } = require('apns2')
 
 // Listen for a specific error
-client.on(errors.badDeviceToken, err => {
+client.on(Errors.badDeviceToken, err => {
   // Handle accordingly...
   // Perhaps delete token from your database
-  console.error(err.reason, err.statusCode, err.notification.deviceToken);
-});
+  console.error(err.reason, err.statusCode, err.notification.deviceToken)
+})
 
 // Listen for any error
-client.on(errors.error, err => {
-  console.error(err.reason, err.statusCode, err.notification.deviceToken);
-});
+client.on(Errors.error, err => {
+  console.error(err.reason, err.statusCode, err.notification.deviceToken)
+})
 ```
 
 ## Environments
@@ -133,7 +131,7 @@ let client = new APNS({
   host: 'api.push.apple.com',
   port: 443,
   ...
-});
+})
 ```
 
 To connect to the development push notification server, pass the options:
@@ -142,13 +140,9 @@ To connect to the development push notification server, pass the options:
 let client = new APNS({
   host: 'api.development.push.apple.com'
   ...
-});
+})
 ```
 
 ## Requirements
 
-`apns2` requires Node.js v6
-
-#### Native http2
-
-To use the new built in `http2` library in Node.js v8.4.0 you must start your node process with `node --expose-http2`. apns2 will automatically pick up the native module and use it instead of `node-spdy`.
+`apns2` requires Node.js v8.10 or later
diff --git a/lib/apns.js b/lib/apns.js
index 023807b7..1095dea3 100644
--- a/lib/apns.js
+++ b/lib/apns.js
@@ -1,25 +1,14 @@
 const _ = require('lodash')
-const apnsErrors = require('./errors')
-const EventEmitter = require('events').EventEmitter
-const jwt = require('jsonwebtoken')
 const Promise = require('bluebird')
-
-// Notifications
+const { EventEmitter } = require('events')
+const { Pool } = require('tarn')
+const jwt = require('jsonwebtoken')
+const Http2Client = require('./http2-client')
+const Errors = require('./errors')
 const Notification = require('./notifications/notification')
 const BasicNotification = require('./notifications/basic-notification')
 const SilentNotification = require('./notifications/silent-notification')
 
-// HTTP/2 Client
-const HTTP2Client = (() => {
-  try {
-    // try native module
-    return require('./http2-client')
-  } catch(err) {
-    // else fallback to spdy
-    return require('./spdy-client')
-  }
-})()
-
 /**
  * @const
  * @desc APNS version
@@ -30,13 +19,13 @@ const API_VERSION = 3
  * @const
  * @desc Number of connections to open up with apns API
  */
-const MAX_CONNECTIONS = 8
+const MAX_CONNECTIONS = 10
 
 /**
  * @const
  * @desc Max notifications to send concurrently
  */
-const CONCURRENCY = 32
+const CONCURRENCY = 64
 
 /**
  * @const
@@ -67,38 +56,6 @@ const RESET_TOKEN_INTERVAL = 20 * 60 * 1000
  */
 class APNS extends EventEmitter {
 
-  /**
-   * @static
-   * @prop {Class} Notification
-   */
-  static get Notification() {
-    return Notification
-  }
-
-  /**
-   * @static
-   * @prop {Class} BasicNotification
-   */
-  static get BasicNotification() {
-    return BasicNotification
-  }
-
-  /**
-   * @static
-   * @prop {Class} SilentNotification
-   */
-  static get SilentNotification() {
-    return SilentNotification
-  }
-
-  /**
-   * @static
-   * @prop {Object} errors
-   */
-  static get errors() {
-    return apnsErrors
-  }
-
   /**
    * @constructor
    * @param {Object} options
@@ -119,10 +76,35 @@ class APNS extends EventEmitter {
     this._signingKey = signingKey
     this._defaultTopic = defaultTopic
     this._concurrency = concurrency
-    this._clients = _.times(connections, () => new HTTP2Client(host, port))
-    this._clientIndex = 0
+    this._clients = this._createClientPool({ host, port, connections })
     this._interval = setInterval(() => this._resetSigningToken(), RESET_TOKEN_INTERVAL).unref()
-    this.on(apnsErrors.expiredProviderToken, () => this._resetSigningToken())
+    this.on(Errors.expiredProviderToken, () => this._resetSigningToken())
+  }
+
+  /**
+   * @private
+   * @method _createClientPool
+   * @param {String} host
+   * @param {Number} port
+   * @return {Pool}
+   */
+  _createClientPool({ host, port, connections }) {
+    return new Pool({
+      create: cb => new Http2Client(host, port).connect().asCallback(cb),
+      validate: client => client.ready,
+      destroy: client => client.destroy(),
+      min: 0,
+      max: connections
+    })
+  }
+
+  /**
+   * @private
+   * @method _acquireClient
+   * @return {Promise}
+   */
+  _acquireClient() {
+    return Promise.resolve(this._clients.acquire().promise)
   }
 
   /**
@@ -142,17 +124,6 @@ class APNS extends EventEmitter {
     })
   }
 
-  /**
-   * @private
-   * @param {HTTP2Client} _nextClient
-   */
-  get _nextClient() {
-    let client = this._clients[this._clientIndex]
-    let nextIndex = this._clientIndex + 1
-    this._clientIndex = nextIndex < this._clients.length ? nextIndex : 0
-    return client
-  }
-
   /**
    * @private
    * @method _send
@@ -179,7 +150,8 @@ class APNS extends EventEmitter {
 
     let body = JSON.stringify(notification.APNSOptions())
 
-    return this._nextClient.post(options, body)
+    return this._acquireClient()
+      .then(client => client.post(options, body))
       .then(res => this._handleServerResponse(res, notification))
   }
 
@@ -199,14 +171,14 @@ class APNS extends EventEmitter {
     try {
       json = JSON.parse(res.body)
     } catch(err) {
-      json = { reason: apnsErrors.unknownError }
+      json = { reason: Errors.unknownError }
     }
 
     json.statusCode = res.statusCode
     json.notification = notification
 
     this.emit(json.reason, json)
-    this.emit(apnsErrors.error, json)
+    this.emit(Errors.error, json)
 
     return Promise.reject(json)
   }
@@ -242,7 +214,7 @@ class APNS extends EventEmitter {
       token = this._token = jwt.sign(claims, key, options)
     } catch(err) {
       token = this._token = null
-      this.emit(apnsErrors.invalidSigningKey)
+      this.emit(Errors.invalidSigningKey)
     }
 
     return token
@@ -258,4 +230,10 @@ class APNS extends EventEmitter {
   }
 }
 
-module.exports = APNS
+module.exports = {
+  APNS,
+  Errors,
+  Notification,
+  BasicNotification,
+  SilentNotification
+}
diff --git a/lib/http2-client.js b/lib/http2-client.js
index 8ce1c394..4b947674 100644
--- a/lib/http2-client.js
+++ b/lib/http2-client.js
@@ -3,7 +3,9 @@ const Promise = require('bluebird')
 const http2 = require('http2')
 
 // Check to make sure this is the native http2
-if (!http2.constants || !http2.constants.NGHTTP2_SESSION_CLIENT) throw new Error('Invalid http2 library')
+if (!http2.constants || !http2.constants.NGHTTP2_SESSION_CLIENT) {
+  throw new Error('Invalid http2 library, must be running Node v8.10 or later')
+}
 
 const {
   HTTP2_HEADER_METHOD,
@@ -23,7 +25,48 @@ class HTTP2Client {
     if (!host) throw new Error('host is required')
     this._url = new URL(`https://${host}:${port}`)
     this._timeout = timeout
-    this.client()
+    this._ready = false
+    this._session = null
+  }
+
+  /**
+   * @param {Boolean} ready
+   */
+  get ready() {
+    return this._ready && this._session && !this._session.destroyed
+  }
+
+  /**
+   * @param {Http2Session}
+   */
+  get session() {
+    return this._session
+  }
+
+  /**
+   * @method connect
+   * @return {Promise}
+   */
+  connect() {
+    return new Promise((resolve, reject) => {
+      let session = http2.connect(this._url)
+      session.once('socketError', reject)
+      session.once('connect', () => {
+        this._connected(session)
+        resolve(this)
+      })
+    })
+  }
+
+  /**
+   * @method destroy
+   */
+  destroy() {
+    if (this._session && !this._session.destroyed) {
+      this._session.destroy()
+    }
+    this._ready = false
+    this._session = null
   }
 
   /**
@@ -67,24 +110,25 @@ class HTTP2Client {
    * @return {Promise<ServerResponse>}
    */
   request({ method, path, headers={} }, body=null) {
-    if (!method) return Promise.reject(`method is required`)
-    if (!path) return Promise.reject(`path is required`)
+    if (!method) throw new Error('method is required')
+    if (!path) throw new Error('path is required')
+    if (!this._session) throw new Error('Must call connect() before making a request')
 
     return new Promise((resolve, reject) => {
       headers[HTTP2_HEADER_METHOD] = method
       headers[HTTP2_HEADER_PATH] = path
-      
-      let req = this.client().request(headers)
-      
+
+      let req = this._session.request(headers)
+
       // Cancel request after timeout
       req.setTimeout(this._timeout, () => req.rstWithCancel())
 
       // Response handling
       req.on('response', headers => {
         let body = ''
-        
+
         req.on('data', chunk => body += chunk)
-        
+
         req.on('end', () => {
           resolve({
             statusCode: headers[HTTP2_HEADER_STATUS],
@@ -109,20 +153,17 @@ class HTTP2Client {
 
   /**
    * @private
-   * @return {Http2Session}
+   * @method _connected
+   * @param {Http2Session} session
    */
-  client() {
-    if (this._client && this._client.destroyed === false) {
-      return this._client
-    }
-
-    // Create client
-    let client = this._client = http2.connect(this._url)
-
-    // Events
-    client.on('goaway', () => client.destroy())
-
-    return client
+  _connected(session) {
+    session.on('close', () => this.destroy())
+    session.on('frameError', () => this.destroy())
+    session.on('goaway', () => this.destroy())
+    session.on('socketError', () => this.destroy())
+    session.on('timeout', () => this.destroy())
+    this._session = session
+    this._ready = true
   }
 }
 
diff --git a/lib/spdy-client.js b/lib/spdy-client.js
deleted file mode 100644
index 7de5b7fb..00000000
--- a/lib/spdy-client.js
+++ /dev/null
@@ -1,120 +0,0 @@
-const https = require('https')
-const spdy = require('spdy')
-const Promise = require('bluebird')
-
-/**
- * @class SpdyClient
- */
-class SpdyClient {
-
-  /**
-   * @constructor
-   */
-  constructor(host, port=443) {
-    if (!host) throw new Error('host is required')
-    this._host = host
-    this._port = port
-    this.agent()
-  }
-
-  /**
-   * @method get
-   */
-  get(options) {
-    options.method = `GET`
-    return this.request(options)
-  }
-
-  /**
-   * @method post
-   */
-  post(options, body) {
-    options.method = `POST`
-    return this.request(options, body)
-  }
-
-  /**
-   * @method put
-   */
-  put(options, body) {
-    options.method = `PUT`
-    return this.request(options, body)
-  }
-
-  /**
-   * @method delete
-   */
-  delete(options) {
-    options.method = `DELETE`
-    return this.request(options)
-  }
-
-  /**
-   * @method request
-   * @param {Object} options
-   * @param {String} options.method
-   * @param {String} options.host
-   * @param {String|Buffer} [body]
-   * @return {Promise<ServerResponse>}
-   */
-  request(options, body) {
-    if (!options) return Promise.reject(`options is required`)
-    if (!options.method) return Promise.reject(`options.method is required`)
-    if (!options.path) return Promise.reject(`options.path is required`)
-
-    options.agent = this.agent()
-
-    return new Promise((resolve, reject) => {
-      this._reject = reject
-
-      let req = https.request(options, res => {
-        let body = ''
-
-        res.on('data', chunk => body += chunk)
-
-        res.on('end', () => {
-          resolve({
-            statusCode: res.statusCode,
-            headers: res.headers,
-            body
-          })
-        })
-      })
-
-      req.on('error', reject)
-
-      if (body) {
-        req.write(body)
-      }
-
-      req.end()
-    })
-  }
-
-  /**
-   * @private
-   * @return {Http2Session}
-   */
-  agent() {
-    if (this._agent && this._agent._spdyState.connection && this._agent._spdyState.connection._spdyState.goaway === false) {
-      return this._agent
-    }
-
-    let agent = this._agent = spdy.createAgent({
-      host: this._host,
-      port: this._port,
-      spdy: {
-        protocols: ['h2']
-      }
-    })
-
-    agent.on('error', err => {
-      if (!this._reject) return
-      this._reject(err)
-    })
-
-    return agent
-  }
-}
-
-module.exports = SpdyClient
diff --git a/package.json b/package.json
index 3cba3c43..196f05f9 100644
--- a/package.json
+++ b/package.json
@@ -1,30 +1,30 @@
 {
   "name": "apns2",
-  "version": "3.0.1",
+  "version": "4.0.0",
   "description": "Node client for connecting to Apple's Push Notification Service using the new HTTP/2 protocol with JSON web tokens.",
   "author": "Andrew Barba <abarba.77@gmail.com>",
   "main": "lib/apns.js",
   "types": "lib/apns.d.ts",
   "license": "MIT",
   "engines": {
-    "node": ">=6.0.0"
+    "node": ">=8.10.0"
   },
   "repository": {
     "url": "https://github.com/AndrewBarba/apns2"
   },
   "dependencies": {
-    "bluebird": "^3.4.1",
-    "jsonwebtoken": "^7.0.1",
-    "lodash": "^4.13.1",
-    "spdy": "^3.4.7"
+    "bluebird": "3.5.1",
+    "jsonwebtoken": "8.2.1",
+    "lodash": "4.17.10",
+    "tarn": "1.1.4"
   },
   "devDependencies": {
-    "eslint": "^4.5.0",
-    "mocha": "^3.3.0",
-    "should": "^12.0.0"
+    "eslint": "4.19.1",
+    "mocha": "5.1.1",
+    "should": "13.2.1"
   },
   "scripts": {
-    "lint": "make lint",
-    "test": "make test-all"
+    "lint": "npx eslint ./",
+    "test": "npx mocha --exit --bail --slow 1000 --timeout 5000 ./test/test.js"
   }
 }
diff --git a/test/test.js b/test/test.js
index ec824430..c117d46b 100644
--- a/test/test.js
+++ b/test/test.js
@@ -2,15 +2,14 @@ const fs = require('fs')
 const should = require('should')
 
 // Package
-const APNS = require('../')
-const errors = APNS.errors
-const HTTP2Client = (() => {
-  try {
-    return require('../lib/http2-client')
-  } catch(err) {
-    return require('../lib/spdy-client')
-  }
-})()
+const HTTP2Client = require('../lib/http2-client')
+const {
+  APNS,
+  Notification,
+  BasicNotification,
+  SilentNotification,
+  Errors
+} = require('../')
 
 describe('http2', () => {
 
@@ -19,6 +18,7 @@ describe('http2', () => {
 
     before(() => {
       client = new HTTP2Client('www.google.com', 443)
+      return client.connect()
     })
 
     it('should make a get request', () => {
@@ -45,14 +45,12 @@ describe('http2', () => {
       client = new HTTP2Client('bogus.google.com', 443, { timeout: 500 })
     })
 
-    it('should not make a get request', () => {
-      return client.get({
-        path: '/'
-      }).then(() => {
-        throw new Error('Failed')
-      }).catch(() => {
-        // good
-      })
+    it('should not connect', () => {
+      return client.connect()
+        .then(() => {
+          throw new Error('Failed')
+        })
+        .catch(() => {})
     })
   })
 })
@@ -75,19 +73,19 @@ describe('apns', () => {
     })
 
     it('should send a basic notification', () => {
-      let basicNotification = new APNS.BasicNotification(deviceToken, `Hello, Basic`)
+      let basicNotification = new BasicNotification(deviceToken, `Hello, Basic`)
       return apns.send(basicNotification)
     })
 
     it('should send a basic notification with options', () => {
-      let basicNotification = new APNS.BasicNotification(deviceToken, `Hello, 1`, {
+      let basicNotification = new BasicNotification(deviceToken, `Hello, 1`, {
         badge: 1
       })
       return apns.send(basicNotification)
     })
 
     it('should send a basic notification with additional data', () => {
-      let basicNotification = new APNS.BasicNotification(deviceToken, `Hello, ICON`, {
+      let basicNotification = new BasicNotification(deviceToken, `Hello, ICON`, {
         badge: 0,
         data: {
           url: `venue/icon`
@@ -97,12 +95,12 @@ describe('apns', () => {
     })
 
     it('should send a silent notification', () => {
-      let silentNotification = new APNS.SilentNotification(deviceToken)
+      let silentNotification = new SilentNotification(deviceToken)
       return apns.send(silentNotification)
     })
 
     it('should send a notification', () => {
-      let notification = new APNS.Notification(deviceToken, {
+      let notification = new Notification(deviceToken, {
         aps: {
           alert: {
             body: `Hello, Tablelist`
@@ -113,8 +111,8 @@ describe('apns', () => {
     })
 
     it('should send both notifications', () => {
-      let basicNotification = new APNS.BasicNotification(deviceToken, `Hello, Multiple`)
-      let silentNotification = new APNS.SilentNotification(deviceToken)
+      let basicNotification = new BasicNotification(deviceToken, `Hello, Multiple`)
+      let silentNotification = new SilentNotification(deviceToken)
       return apns.send([basicNotification, silentNotification]).then(result => {
         should.exist(result)
         result.length.should.equal(2)
@@ -122,22 +120,22 @@ describe('apns', () => {
     })
 
     it('should fail to send a notification', () => {
-      let noti = new APNS.BasicNotification(`fakedevicetoken`, `Hello, bad token`)
+      let noti = new BasicNotification(`fakedevicetoken`, `Hello, bad token`)
       return apns.send(noti).catch(err => {
         should.exist(err)
-        err.reason.should.equal(errors.badDeviceToken)
+        err.reason.should.equal(Errors.badDeviceToken)
       })
     })
 
     it('should fail to send a notification and emit an error', done => {
 
-      apns.once(errors.error, err => {
+      apns.once(Errors.error, err => {
         should.exist(err)
-        err.reason.should.equal(errors.badDeviceToken)
+        err.reason.should.equal(Errors.badDeviceToken)
         done()
       })
 
-      let noti = new APNS.BasicNotification(`fakedevicetoken`, `Hello, bad token`)
+      let noti = new BasicNotification(`fakedevicetoken`, `Hello, bad token`)
       apns.send(noti).catch(err => {
         should.exist(err)
       })
@@ -145,13 +143,13 @@ describe('apns', () => {
 
     it('should fail to send a notification and emit an error', done => {
 
-      apns.once(errors.badDeviceToken, err => {
+      apns.once(Errors.badDeviceToken, err => {
         should.exist(err)
-        err.reason.should.equal(errors.badDeviceToken)
+        err.reason.should.equal(Errors.badDeviceToken)
         done()
       })
 
-      let noti = new APNS.BasicNotification(`fakedevicetoken`, `Hello, bad token`)
+      let noti = new BasicNotification(`fakedevicetoken`, `Hello, bad token`)
       apns.send(noti).catch(err => {
         should.exist(err)
       })
diff --git a/yarn.lock b/yarn.lock
index 550ff856..473cc954 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12,29 +12,22 @@ acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
-acorn@^5.1.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.1.1.tgz#53fe161111f912ab999ee887a90a0bc52822fd75"
-
-ajv-keywords@^1.0.0:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-1.5.1.tgz#314dd0a4b3368fad3dfcdc54ede6171b886daf3c"
+acorn@^5.5.0:
+  version "5.5.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
 
-ajv@^4.7.0:
-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-4.11.8.tgz#82ffb02b29e662ae53bdc20af15947706739c536"
-  dependencies:
-    co "^4.6.0"
-    json-stable-stringify "^1.0.1"
+ajv-keywords@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
 
-ajv@^5.2.0:
-  version "5.2.2"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.2.2.tgz#47c68d69e86f5d953103b0074a9430dc63da5e39"
+ajv@^5.2.3, ajv@^5.3.0:
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
   dependencies:
     co "^4.6.0"
     fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.3.0"
-    json-stable-stringify "^1.0.1"
 
 ansi-escapes@^2.0.0:
   version "2.0.0"
@@ -94,9 +87,9 @@ base64url@2.0.0, base64url@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/base64url/-/base64url-2.0.0.tgz#eac16e03ea1438eff9423d69baa36262ed1f70bb"
 
-bluebird@^3.4.1:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.0.tgz#791420d7f551eea2897453a8a77653f96606d67c"
+bluebird@3.5.1:
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
 
 brace-expansion@^1.1.7:
   version "1.1.8"
@@ -105,9 +98,9 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
-browser-stdout@1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
+browser-stdout@1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
 
 buffer-equal-constant-time@1.0.1:
   version "1.0.1"
@@ -123,7 +116,7 @@ callsites@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
 
-chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -169,11 +162,9 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
-commander@2.9.0:
-  version "2.9.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"
-  dependencies:
-    graceful-readlink ">= 1.0.0"
+commander@2.11.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
 
 concat-map@0.0.1:
   version "0.0.1"
@@ -199,9 +190,9 @@ cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
-debug@2.6.8, debug@^2.6.8:
-  version "2.6.8"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.8.tgz#e731531ca2ede27d188222427da17821d68ff4fc"
+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"
 
@@ -221,20 +212,15 @@ del@^2.0.2:
     pinkie-promise "^2.0.0"
     rimraf "^2.2.8"
 
-detect-node@^2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/detect-node/-/detect-node-2.0.3.tgz#a2033c09cc8e158d37748fbde7507832bd6ce127"
-
-diff@3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/diff/-/diff-3.2.0.tgz#c9ce393a4b7cbd0b058a725c93df299027868ff9"
+diff@3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
 
-doctrine@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.0.0.tgz#c73d8d2909d22291e1a007a395804da8b665fe63"
+doctrine@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
   dependencies:
     esutils "^2.0.2"
-    isarray "^1.0.0"
 
 ecdsa-sig-formatter@1.0.9:
   version "1.0.9"
@@ -254,32 +240,36 @@ eslint-scope@^3.7.1:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
-eslint@^4.5.0:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.5.0.tgz#bb75d3b8bde97fb5e13efcd539744677feb019c3"
+eslint-visitor-keys@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz#3f3180fb2e291017716acb4c9d6d5b5c34a6a81d"
+
+eslint@4.19.1:
+  version "4.19.1"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.19.1.tgz#32d1d653e1d90408854bfb296f076ec7e186a300"
   dependencies:
-    ajv "^5.2.0"
+    ajv "^5.3.0"
     babel-code-frame "^6.22.0"
     chalk "^2.1.0"
     concat-stream "^1.6.0"
     cross-spawn "^5.1.0"
-    debug "^2.6.8"
-    doctrine "^2.0.0"
+    debug "^3.1.0"
+    doctrine "^2.1.0"
     eslint-scope "^3.7.1"
-    espree "^3.5.0"
+    eslint-visitor-keys "^1.0.0"
+    espree "^3.5.4"
     esquery "^1.0.0"
-    estraverse "^4.2.0"
     esutils "^2.0.2"
     file-entry-cache "^2.0.0"
     functional-red-black-tree "^1.0.1"
     glob "^7.1.2"
-    globals "^9.17.0"
+    globals "^11.0.1"
     ignore "^3.3.3"
     imurmurhash "^0.1.4"
     inquirer "^3.0.6"
     is-resolvable "^1.0.0"
     js-yaml "^3.9.1"
-    json-stable-stringify "^1.0.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.3.0"
     lodash "^4.17.4"
     minimatch "^3.0.2"
@@ -287,20 +277,21 @@ eslint@^4.5.0:
     natural-compare "^1.4.0"
     optionator "^0.8.2"
     path-is-inside "^1.0.2"
-    pluralize "^4.0.0"
+    pluralize "^7.0.0"
     progress "^2.0.0"
+    regexpp "^1.0.1"
     require-uncached "^1.0.3"
     semver "^5.3.0"
     strip-ansi "^4.0.0"
     strip-json-comments "~2.0.1"
-    table "^4.0.1"
+    table "4.0.2"
     text-table "~0.2.0"
 
-espree@^3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.0.tgz#98358625bdd055861ea27e2867ea729faf463d8d"
+espree@^3.5.4:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
   dependencies:
-    acorn "^5.1.1"
+    acorn "^5.5.0"
     acorn-jsx "^3.0.0"
 
 esprima@^4.0.0:
@@ -320,7 +311,7 @@ esrecurse@^4.1.0:
     estraverse "^4.1.0"
     object-assign "^4.0.1"
 
-estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1, estraverse@^4.2.0:
+estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.2.0.tgz#0dee3fed31fcd469618ce7342099fc1afa0bdb13"
 
@@ -340,6 +331,10 @@ fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
 
+fast-json-stable-stringify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
+
 fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
@@ -374,18 +369,7 @@ functional-red-black-tree@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
 
-glob@7.1.1:
-  version "7.1.1"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.1.tgz#805211df04faaf1c63a3600306cdf5ade50b2ec8"
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.2"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
-glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
+glob@7.1.2, glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
   dependencies:
@@ -396,9 +380,9 @@ glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-globals@^9.17.0:
-  version "9.18.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-9.18.0.tgz#aa3896b3e69b487f17e31ed2143d69a8e30c2d8a"
+globals@^11.0.1:
+  version "11.5.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.5.0.tgz#6bc840de6771173b191f13d3a9c94d441ee92642"
 
 globby@^5.0.0:
   version "5.0.0"
@@ -415,17 +399,9 @@ graceful-fs@^4.1.2:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-"graceful-readlink@>= 1.0.0":
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/graceful-readlink/-/graceful-readlink-1.0.1.tgz#4cafad76bc62f02fa039b2f94e9a3dd3a391a725"
-
-growl@1.9.2:
-  version "1.9.2"
-  resolved "https://registry.yarnpkg.com/growl/-/growl-1.9.2.tgz#0ea7743715db8d8de2c5ede1775e1b45ac85c02f"
-
-handle-thing@^1.2.5:
-  version "1.2.5"
-  resolved "https://registry.yarnpkg.com/handle-thing/-/handle-thing-1.2.5.tgz#fd7aad726bf1a5fd16dfc29b2f7a6601d27139c4"
+growl@1.10.3:
+  version "1.10.3"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.3.tgz#1926ba90cf3edfe2adb4927f5880bc22c66c790f"
 
 has-ansi@^2.0.0:
   version "2.0.0"
@@ -433,30 +409,13 @@ has-ansi@^2.0.0:
   dependencies:
     ansi-regex "^2.0.0"
 
-has-flag@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
-
 has-flag@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
 
-hoek@2.x.x:
-  version "2.16.3"
-  resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
-
-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"
-
-http-deceiver@^1.2.7:
-  version "1.2.7"
-  resolved "https://registry.yarnpkg.com/http-deceiver/-/http-deceiver-1.2.7.tgz#fa7168944ab9a519d337cb0bec7284dc3e723d87"
+he@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
 
 iconv-lite@^0.4.17:
   version "0.4.18"
@@ -477,7 +436,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.3:
+inherits@2, inherits@^2.0.3, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
@@ -530,27 +489,14 @@ is-resolvable@^1.0.0:
   dependencies:
     tryit "^1.0.1"
 
-isarray@^1.0.0, isarray@~1.0.0:
+isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
 
-isemail@1.x.x:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/isemail/-/isemail-1.2.0.tgz#be03df8cc3e29de4d2c5df6501263f1fa4595e9a"
-
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
 
-joi@^6.10.1:
-  version "6.10.1"
-  resolved "https://registry.yarnpkg.com/joi/-/joi-6.10.1.tgz#4d50c318079122000fe5f16af1ff8e1917b77e06"
-  dependencies:
-    hoek "2.x.x"
-    isemail "1.x.x"
-    moment "2.x.x"
-    topo "1.x.x"
-
 js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
@@ -570,28 +516,23 @@ json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
 
-json-stable-stringify@^1.0.1:
+json-stable-stringify-without-jsonify@^1.0.1:
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
-  dependencies:
-    jsonify "~0.0.0"
-
-json3@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
 
-jsonify@~0.0.0:
-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
-
-jsonwebtoken@^7.0.1:
-  version "7.4.3"
-  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-7.4.3.tgz#77f5021de058b605a1783fa1283e99812e645638"
+jsonwebtoken@8.2.1:
+  version "8.2.1"
+  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.2.1.tgz#333ee39aa8f238f32fa41693e7a2fb7e42f82b31"
   dependencies:
-    joi "^6.10.1"
     jws "^3.1.4"
+    lodash.includes "^4.3.0"
+    lodash.isboolean "^3.0.3"
+    lodash.isinteger "^4.0.4"
+    lodash.isnumber "^3.0.3"
+    lodash.isplainobject "^4.0.6"
+    lodash.isstring "^4.0.1"
     lodash.once "^4.0.0"
-    ms "^2.0.0"
+    ms "^2.1.1"
     xtend "^4.0.1"
 
 jwa@^1.1.4:
@@ -618,58 +559,39 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-lodash._baseassign@^3.0.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
-  dependencies:
-    lodash._basecopy "^3.0.0"
-    lodash.keys "^3.0.0"
-
-lodash._basecopy@^3.0.0:
-  version "3.0.1"
-  resolved "https://registry.yarnpkg.com/lodash._basecopy/-/lodash._basecopy-3.0.1.tgz#8da0e6a876cf344c0ad8a54882111dd3c5c7ca36"
+lodash.includes@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/lodash.includes/-/lodash.includes-4.3.0.tgz#60bb98a87cb923c68ca1e51325483314849f553f"
 
-lodash._basecreate@^3.0.0:
+lodash.isboolean@^3.0.3:
   version "3.0.3"
-  resolved "https://registry.yarnpkg.com/lodash._basecreate/-/lodash._basecreate-3.0.3.tgz#1bc661614daa7fc311b7d03bf16806a0213cf821"
-
-lodash._getnative@^3.0.0:
-  version "3.9.1"
-  resolved "https://registry.yarnpkg.com/lodash._getnative/-/lodash._getnative-3.9.1.tgz#570bc7dede46d61cdcde687d65d3eecbaa3aaff5"
+  resolved "https://registry.yarnpkg.com/lodash.isboolean/-/lodash.isboolean-3.0.3.tgz#6c2e171db2a257cd96802fd43b01b20d5f5870f6"
 
-lodash._isiterateecall@^3.0.0:
-  version "3.0.9"
-  resolved "https://registry.yarnpkg.com/lodash._isiterateecall/-/lodash._isiterateecall-3.0.9.tgz#5203ad7ba425fae842460e696db9cf3e6aac057c"
+lodash.isinteger@^4.0.4:
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/lodash.isinteger/-/lodash.isinteger-4.0.4.tgz#619c0af3d03f8b04c31f5882840b77b11cd68343"
 
-lodash.create@3.1.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/lodash.create/-/lodash.create-3.1.1.tgz#d7f2849f0dbda7e04682bb8cd72ab022461debe7"
-  dependencies:
-    lodash._baseassign "^3.0.0"
-    lodash._basecreate "^3.0.0"
-    lodash._isiterateecall "^3.0.0"
-
-lodash.isarguments@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/lodash.isarguments/-/lodash.isarguments-3.1.0.tgz#2f573d85c6a24289ff00663b491c1d338ff3458a"
+lodash.isnumber@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/lodash.isnumber/-/lodash.isnumber-3.0.3.tgz#3ce76810c5928d03352301ac287317f11c0b1ffc"
 
-lodash.isarray@^3.0.0:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/lodash.isarray/-/lodash.isarray-3.0.4.tgz#79e4eb88c36a8122af86f844aa9bcd851b5fbb55"
+lodash.isplainobject@^4.0.6:
+  version "4.0.6"
+  resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
 
-lodash.keys@^3.0.0:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/lodash.keys/-/lodash.keys-3.1.2.tgz#4dbc0472b156be50a0b286855d1bd0b0c656098a"
-  dependencies:
-    lodash._getnative "^3.0.0"
-    lodash.isarguments "^3.0.0"
-    lodash.isarray "^3.0.0"
+lodash.isstring@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/lodash.isstring/-/lodash.isstring-4.0.1.tgz#d527dfb5456eca7cc9bb95d5daeaf88ba54a5451"
 
 lodash.once@^4.0.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/lodash.once/-/lodash.once-4.1.1.tgz#0dd3971213c7c56df880977d504c88fb471a97ac"
 
-lodash@^4.0.0, lodash@^4.13.1, lodash@^4.17.4, lodash@^4.3.0:
+lodash@4.17.10:
+  version "4.17.10"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+
+lodash@^4.17.4, lodash@^4.3.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
@@ -684,11 +606,7 @@ mimic-fn@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.1.0.tgz#e667783d92e89dbd342818b5230b9d62a672ad18"
 
-minimalistic-assert@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.0.tgz#702be2dda6b37f4836bcb3f5db56641b64a1d3d3"
-
-minimatch@^3.0.2, minimatch@^3.0.4:
+minimatch@3.0.4, minimatch@^3.0.2, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -704,30 +622,30 @@ mkdirp@0.5.1, mkdirp@^0.5.1:
   dependencies:
     minimist "0.0.8"
 
-mocha@^3.3.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-3.5.0.tgz#1328567d2717f997030f8006234bce9b8cd72465"
+mocha@5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.1.1.tgz#b774c75609dac05eb48f4d9ba1d827b97fde8a7b"
   dependencies:
-    browser-stdout "1.3.0"
-    commander "2.9.0"
-    debug "2.6.8"
-    diff "3.2.0"
+    browser-stdout "1.3.1"
+    commander "2.11.0"
+    debug "3.1.0"
+    diff "3.5.0"
     escape-string-regexp "1.0.5"
-    glob "7.1.1"
-    growl "1.9.2"
-    json3 "3.3.2"
-    lodash.create "3.1.1"
+    glob "7.1.2"
+    growl "1.10.3"
+    he "1.1.1"
+    minimatch "3.0.4"
     mkdirp "0.5.1"
-    supports-color "3.1.2"
+    supports-color "4.4.0"
 
-moment@2.x.x:
-  version "2.18.1"
-  resolved "https://registry.yarnpkg.com/moment/-/moment-2.18.1.tgz#c36193dd3ce1c2eed2adb7c802dbbc77a81b1c0f"
-
-ms@2.0.0, ms@^2.0.0:
+ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
+
 mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
@@ -740,10 +658,6 @@ object-assign@^4.0.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
-obuf@^1.0.0, obuf@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.1.tgz#104124b6c602c6796881a042541d36db43a5264e"
-
 once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -793,9 +707,9 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
-pluralize@^4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-4.0.0.tgz#59b708c1c0190a2f692f1c7618c446b052fd1762"
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
 
 prelude-ls@~1.1.2:
   version "1.1.2"
@@ -813,7 +727,7 @@ pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
-readable-stream@^2.0.1, readable-stream@^2.2.2, readable-stream@^2.2.9:
+readable-stream@^2.2.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.3.tgz#368f2512d79f9d46fdfc71349ae7878bbc1eb95c"
   dependencies:
@@ -825,6 +739,10 @@ readable-stream@^2.0.1, readable-stream@^2.2.2, readable-stream@^2.2.9:
     string_decoder "~1.0.3"
     util-deprecate "~1.0.1"
 
+regexpp@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-1.1.0.tgz#0e3516dd0b7904f413d2d4193dce4618c3a689ab"
+
 require-uncached@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
@@ -869,10 +787,6 @@ safe-buffer@^5.0.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
-select-hose@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
-
 semver@^5.3.0:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
@@ -915,9 +829,9 @@ should-util@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/should-util/-/should-util-1.0.0.tgz#c98cda374aa6b190df8ba87c9889c2b4db620063"
 
-should@^12.0.0:
-  version "12.0.0"
-  resolved "https://registry.yarnpkg.com/should/-/should-12.0.0.tgz#846667cd241691a6509fff0820f44d39143ddcf7"
+should@13.2.1:
+  version "13.2.1"
+  resolved "https://registry.yarnpkg.com/should/-/should-13.2.1.tgz#84e6ebfbb145c79e0ae42307b25b3f62dcaf574e"
   dependencies:
     should-equal "^2.0.0"
     should-format "^3.0.3"
@@ -929,38 +843,17 @@ signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
-slice-ansi@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
-
-spdy-transport@^2.0.18:
-  version "2.0.20"
-  resolved "https://registry.yarnpkg.com/spdy-transport/-/spdy-transport-2.0.20.tgz#735e72054c486b2354fe89e702256004a39ace4d"
-  dependencies:
-    debug "^2.6.8"
-    detect-node "^2.0.3"
-    hpack.js "^2.1.6"
-    obuf "^1.1.1"
-    readable-stream "^2.2.9"
-    safe-buffer "^5.0.1"
-    wbuf "^1.7.2"
-
-spdy@^3.4.7:
-  version "3.4.7"
-  resolved "https://registry.yarnpkg.com/spdy/-/spdy-3.4.7.tgz#42ff41ece5cc0f99a3a6c28aabb73f5c3b03acbc"
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
   dependencies:
-    debug "^2.6.8"
-    handle-thing "^1.2.5"
-    http-deceiver "^1.2.7"
-    safe-buffer "^5.0.1"
-    select-hose "^2.0.0"
-    spdy-transport "^2.0.18"
+    is-fullwidth-code-point "^2.0.0"
 
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
 
-string-width@^2.0.0, string-width@^2.1.0:
+string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
   dependencies:
@@ -989,11 +882,11 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
-supports-color@3.1.2:
-  version "3.1.2"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.1.2.tgz#72a262894d9d408b956ca05ff37b2ed8a6e2a2d5"
+supports-color@4.4.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.4.0.tgz#883f7ddabc165142b2a61427f3352ded195d1a3e"
   dependencies:
-    has-flag "^1.0.0"
+    has-flag "^2.0.0"
 
 supports-color@^2.0.0:
   version "2.0.0"
@@ -1005,16 +898,20 @@ supports-color@^4.0.0:
   dependencies:
     has-flag "^2.0.0"
 
-table@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/table/-/table-4.0.1.tgz#a8116c133fac2c61f4a420ab6cdf5c4d61f0e435"
+table@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
   dependencies:
-    ajv "^4.7.0"
-    ajv-keywords "^1.0.0"
-    chalk "^1.1.1"
-    lodash "^4.0.0"
-    slice-ansi "0.0.4"
-    string-width "^2.0.0"
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
+
+tarn@1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/tarn/-/tarn-1.1.4.tgz#aeeb85964b1afa0bbf381359c1167df237c27b6a"
 
 text-table@~0.2.0:
   version "0.2.0"
@@ -1030,12 +927,6 @@ tmp@^0.0.31:
   dependencies:
     os-tmpdir "~1.0.1"
 
-topo@1.x.x:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/topo/-/topo-1.1.0.tgz#e9d751615d1bb87dc865db182fa1ca0a5ef536d5"
-  dependencies:
-    hoek "2.x.x"
-
 tryit@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/tryit/-/tryit-1.0.3.tgz#393be730a9446fd1ead6da59a014308f36c289cb"
@@ -1054,12 +945,6 @@ util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
-wbuf@^1.1.0, wbuf@^1.7.2:
-  version "1.7.2"
-  resolved "https://registry.yarnpkg.com/wbuf/-/wbuf-1.7.2.tgz#d697b99f1f59512df2751be42769c1580b5801fe"
-  dependencies:
-    minimalistic-assert "^1.0.0"
-
 which@^1.2.9:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"