diff --git a/CHANGELOG.md b/CHANGELOG.md
index e8b55e915749..4cc8b9b3da87 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,10 +24,14 @@
 - [core] ref: Remove Repo interface and repos attribute from Event
 - [core] ref: Rewrite RequestBuffer using Array instead of Set for IE10/11
 - [hub] fix: Scope level overwrites level on the event
+- [hub] fix: Correctly store and retrieve Hub from domain when one is active
+- [hub] fix: Copy over user data when cloning scope
 - [node] feat: Allow requestHandler to be configured
-- [node] feat: Make node transactions a pluggable integration with tests 
+- [node] feat: Make node transactions a pluggable integration with tests
 - [node] feat: Transactions handling for RequestHandler in Express/Hapi
 - [node] fix: Dont wrap native modules more than once to prevent leaks
+- [node] fix: Use getCurrentHub to retrieve correct hub in requestHandler
+
 - [utils] ref: implemented includes, assign and isNaN polyfills
 
 ## 4.0.6
diff --git a/packages/browser/rollup.config.js b/packages/browser/rollup.config.js
index e4f163aba20e..6ab687788c31 100644
--- a/packages/browser/rollup.config.js
+++ b/packages/browser/rollup.config.js
@@ -1,9 +1,9 @@
-import builtins from 'rollup-plugin-node-builtins';
 import commonjs from 'rollup-plugin-commonjs';
 import uglify from 'rollup-plugin-uglify';
 import resolve from 'rollup-plugin-node-resolve';
 import typescript from 'rollup-plugin-typescript2';
 import license from 'rollup-plugin-license';
+import builtins from 'rollup-plugin-node-builtins';
 
 const commitHash = require('child_process')
   .execSync('git rev-parse --short HEAD', { encoding: 'utf-8' })
diff --git a/packages/core/test/integrations/rewriteframes.test.ts b/packages/core/test/lib/integrations/rewriteframes.test.ts
similarity index 97%
rename from packages/core/test/integrations/rewriteframes.test.ts
rename to packages/core/test/lib/integrations/rewriteframes.test.ts
index d772a07f3a85..8b928f52b3af 100644
--- a/packages/core/test/integrations/rewriteframes.test.ts
+++ b/packages/core/test/lib/integrations/rewriteframes.test.ts
@@ -1,5 +1,5 @@
 import { SentryEvent, StackFrame } from '@sentry/types';
-import { RewriteFrames } from '../../src/integrations/pluggable/rewriteframes';
+import { RewriteFrames } from '../../../src/integrations/pluggable/rewriteframes';
 
 let rewriteFrames: RewriteFrames;
 let messageEvent: SentryEvent;
diff --git a/packages/hub/src/hub.ts b/packages/hub/src/hub.ts
index b0cfade4c0e5..4d88ed352554 100644
--- a/packages/hub/src/hub.ts
+++ b/packages/hub/src/hub.ts
@@ -287,6 +287,11 @@ export function makeMain(hub?: Hub): Hub | undefined {
   return oldHub;
 }
 
+/** Domain interface with attached Hub */
+interface SentryDomain extends NodeJS.Domain {
+  __SENTRY__?: Carrier;
+}
+
 /**
  * Returns the default hub instance.
  *
@@ -301,7 +306,28 @@ export function getCurrentHub(): Hub {
     registry.hub = new Hub();
   }
 
-  return registry.hub;
+  let domain = null;
+  try {
+    domain = process.domain as SentryDomain;
+  } catch (_Oo) {
+    // We do not have process
+  }
+
+  if (!domain) {
+    return registry.hub;
+  }
+
+  let carrier = domain.__SENTRY__;
+  if (!carrier) {
+    domain.__SENTRY__ = carrier = {};
+  }
+
+  if (!carrier.hub) {
+    const top = registry.hub.getStackTop();
+    carrier.hub = top ? new Hub(top.client, Scope.clone(top.scope)) : new Hub();
+  }
+
+  return carrier.hub;
 }
 
 /**
diff --git a/packages/hub/src/scope.ts b/packages/hub/src/scope.ts
index 0bd7716b43f2..b7f31bf41d47 100644
--- a/packages/hub/src/scope.ts
+++ b/packages/hub/src/scope.ts
@@ -139,6 +139,9 @@ export class Scope {
       scopeListeners: [],
     });
     if (scope) {
+      newScope.extra = assign(scope.extra);
+      newScope.tags = assign(scope.tags) as any;
+      newScope.breadcrumbs = [...scope.breadcrumbs];
       newScope.eventProcessors = [...scope.eventProcessors];
     }
     return newScope;
diff --git a/packages/node/src/handlers.ts b/packages/node/src/handlers.ts
index 453e93e257af..ae46d5327d01 100644
--- a/packages/node/src/handlers.ts
+++ b/packages/node/src/handlers.ts
@@ -1,5 +1,5 @@
 import { logger } from '@sentry/core';
-import { getHubFromCarrier, Scope } from '@sentry/hub';
+import { getCurrentHub, Scope } from '@sentry/hub';
 import { SentryEvent, Severity } from '@sentry/types';
 import { forget } from '@sentry/utils/async';
 import { serialize } from '@sentry/utils/object';
@@ -9,7 +9,6 @@ import * as http from 'http';
 import * as os from 'os';
 import * as url from 'url';
 import { NodeClient } from './client';
-import { getCurrentHub } from './hub';
 
 const DEFAULT_SHUTDOWN_TIMEOUT = 2000;
 
@@ -208,20 +207,22 @@ export function requestHandler(options?: {
   transaction?: boolean | TransactionTypes;
   user?: boolean;
   version?: boolean;
-}): (req: http.IncomingMessage, res: http.ServerResponse, next: () => void) => void {
+}): (req: http.IncomingMessage, res: http.ServerResponse, next: (error?: any) => void) => void {
   return function sentryRequestMiddleware(
     req: http.IncomingMessage,
-    _res: http.ServerResponse,
-    next: () => void,
+    res: http.ServerResponse,
+    next: (error?: any) => void,
   ): void {
     const local = domain.create();
-    const hub = getHubFromCarrier(req);
-    hub.bindClient(getCurrentHub().getClient());
-    hub.configureScope((scope: Scope) => {
-      scope.addEventProcessor(async (event: SentryEvent) => parseRequest(event, req, options));
-    });
+    local.add(req);
+    local.add(res);
     local.on('error', next);
-    local.run(next);
+    local.run(() => {
+      getCurrentHub().configureScope(scope =>
+        scope.addEventProcessor(async (event: SentryEvent) => parseRequest(event, req, options)),
+      );
+      next();
+    });
   };
 }
 
@@ -238,7 +239,6 @@ interface MiddlewareError extends Error {
 /** JSDoc */
 function getStatusCodeFromResponse(error: MiddlewareError): number {
   const statusCode = error.status || error.statusCode || error.status_code || (error.output && error.output.statusCode);
-
   return statusCode ? parseInt(statusCode as string, 10) : 500;
 }
 
@@ -251,7 +251,7 @@ export function errorHandler(): (
 ) => void {
   return function sentryErrorMiddleware(
     error: MiddlewareError,
-    req: http.IncomingMessage,
+    _req: http.IncomingMessage,
     _res: http.ServerResponse,
     next: (error: MiddlewareError) => void,
   ): void {
@@ -260,7 +260,7 @@ export function errorHandler(): (
       next(error);
       return;
     }
-    getHubFromCarrier(req).captureException(error, { originalException: error });
+    getCurrentHub().captureException(error, { originalException: error });
     next(error);
   };
 }
diff --git a/packages/node/src/hub.ts b/packages/node/src/hub.ts
deleted file mode 100644
index 3d32558491b4..000000000000
--- a/packages/node/src/hub.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import { Carrier, getCurrentHub as getCurrentHubBase, Hub } from '@sentry/hub';
-import * as domain from 'domain';
-
-declare module 'domain' {
-  export let active: Domain;
-  /**
-   * Extension for domain interface
-   */
-  export interface Domain {
-    __SENTRY__?: Carrier;
-  }
-}
-
-/**
- * Returns the latest global hub instance.
- *
- * If a hub is already registered in the global carrier but this module
- * contains a more recent version, it replaces the registered version.
- * Otherwise, the currently registered hub will be returned.
- */
-export function getCurrentHub(): Hub {
-  const globalHub = getCurrentHubBase();
-  if (!domain.active) {
-    return globalHub;
-  }
-
-  let carrier = domain.active.__SENTRY__;
-  if (!carrier) {
-    domain.active.__SENTRY__ = carrier = {};
-  }
-
-  if (!carrier.hub) {
-    const top = globalHub.getStackTop();
-    carrier.hub = top ? new Hub(top.client, top.scope) : new Hub();
-  }
-
-  return carrier.hub;
-}
diff --git a/packages/node/src/index.ts b/packages/node/src/index.ts
index ea3ed22a3c39..f8d7780032f5 100644
--- a/packages/node/src/index.ts
+++ b/packages/node/src/index.ts
@@ -19,13 +19,13 @@ export {
   captureEvent,
   captureMessage,
   configureScope,
+  getCurrentHub,
   getHubFromCarrier,
   Hub,
   Scope,
   withScope,
 } from '@sentry/core';
 
-export { getCurrentHub } from './hub';
 export { NodeBackend, NodeOptions } from './backend';
 export { NodeClient } from './client';
 export { defaultIntegrations, init } from './sdk';
diff --git a/packages/node/src/integrations/console.ts b/packages/node/src/integrations/console.ts
index 129eea3999fe..3b7773f70d51 100644
--- a/packages/node/src/integrations/console.ts
+++ b/packages/node/src/integrations/console.ts
@@ -1,7 +1,7 @@
+import { getCurrentHub } from '@sentry/hub';
 import { Integration, Severity } from '@sentry/types';
 import { fill } from '@sentry/utils/object';
 import * as util from 'util';
-import { getCurrentHub } from '../hub';
 
 /**
  * Wrapper function for internal _load calls within `require`
diff --git a/packages/node/src/integrations/http.ts b/packages/node/src/integrations/http.ts
index 40c8b7ce9a12..62eee762b16e 100644
--- a/packages/node/src/integrations/http.ts
+++ b/packages/node/src/integrations/http.ts
@@ -1,8 +1,8 @@
+import { getCurrentHub } from '@sentry/hub';
 import { Integration } from '@sentry/types';
 import { fill } from '@sentry/utils/object';
 import * as http from 'http';
 import * as util from 'util';
-import { getCurrentHub } from '../hub';
 
 let lastResponse: http.ServerResponse | undefined;
 
diff --git a/packages/node/src/integrations/index.ts b/packages/node/src/integrations/index.ts
index 7f3cc0dde180..d2b3e4f05323 100644
--- a/packages/node/src/integrations/index.ts
+++ b/packages/node/src/integrations/index.ts
@@ -5,3 +5,4 @@ export { OnUnhandledRejection } from './onunhandledrejection';
 export { LinkedErrors } from './linkederrors';
 
 export { Modules } from './pluggable/modules';
+export { Transaction } from './pluggable/transaction';
diff --git a/packages/node/src/integrations/linkederrors.ts b/packages/node/src/integrations/linkederrors.ts
index 8f1f9de2bb8e..06084d8f95fd 100644
--- a/packages/node/src/integrations/linkederrors.ts
+++ b/packages/node/src/integrations/linkederrors.ts
@@ -1,5 +1,5 @@
+import { getCurrentHub } from '@sentry/hub';
 import { Integration, SentryEvent, SentryEventHint, SentryException } from '@sentry/types';
-import { getCurrentHub } from '../hub';
 import { getExceptionFromError } from '../parsers';
 
 const DEFAULT_KEY = 'cause';
diff --git a/packages/node/src/integrations/onunhandledrejection.ts b/packages/node/src/integrations/onunhandledrejection.ts
index 3bb6e0ac1073..bb7162ea05a7 100644
--- a/packages/node/src/integrations/onunhandledrejection.ts
+++ b/packages/node/src/integrations/onunhandledrejection.ts
@@ -1,5 +1,5 @@
+import { getCurrentHub } from '@sentry/hub';
 import { Integration } from '@sentry/types';
-import { getCurrentHub } from '../hub';
 
 /** Global Promise Rejection handler */
 export class OnUnhandledRejection implements Integration {
diff --git a/packages/node/src/integrations/pluggable/modules.ts b/packages/node/src/integrations/pluggable/modules.ts
index d45c6ac9bbee..806310c36f3f 100644
--- a/packages/node/src/integrations/pluggable/modules.ts
+++ b/packages/node/src/integrations/pluggable/modules.ts
@@ -1,8 +1,7 @@
-import { Scope } from '@sentry/hub';
+import { getCurrentHub, Scope } from '@sentry/hub';
 import { Integration } from '@sentry/types';
 import * as lsmod from 'lsmod';
 import { NodeOptions } from '../../backend';
-import { getCurrentHub } from '../../hub';
 
 let moduleCache: { [key: string]: string };
 
diff --git a/packages/node/src/integrations/pluggable/transaction.ts b/packages/node/src/integrations/pluggable/transaction.ts
index 3922277fd97b..0a262cc93992 100644
--- a/packages/node/src/integrations/pluggable/transaction.ts
+++ b/packages/node/src/integrations/pluggable/transaction.ts
@@ -1,7 +1,6 @@
-import { Scope } from '@sentry/hub';
+import { getCurrentHub, Scope } from '@sentry/hub';
 import { Integration, SentryEvent, StackFrame } from '@sentry/types';
 import { NodeOptions } from '../../backend';
-import { getCurrentHub } from '../../hub';
 
 /** Add node transaction to the event */
 export class Transaction implements Integration {
diff --git a/packages/node/test/domain.test.ts b/packages/node/test/domain.test.ts
index 005e2d2398ba..80ce410df2f2 100644
--- a/packages/node/test/domain.test.ts
+++ b/packages/node/test/domain.test.ts
@@ -1,39 +1,7 @@
-import { Layer } from '@sentry/hub';
+import { getCurrentHub, Hub } from '@sentry/hub';
 import * as domain from 'domain';
 
-const mockgetCurrentHub = jest.fn();
-
-class MockHub {
-  public constructor(public stack: Layer[] = []) {
-    MockHub.instance = this;
-  }
-  public static instance: MockHub;
-
-  public getStack(): Layer[] {
-    return this.stack;
-  }
-
-  public getStackTop(): Layer {
-    return this.stack[this.stack.length - 1];
-  }
-}
-
-const mockHub = MockHub;
-jest.mock('@sentry/hub', () => ({
-  Hub: mockHub,
-  getCurrentHub: mockgetCurrentHub,
-}));
-
-import { getCurrentHub } from '../src';
-
 describe('domains', () => {
-  let globalHub: MockHub;
-
-  beforeEach(() => {
-    globalHub = new MockHub();
-    mockgetCurrentHub.mockReturnValue(globalHub);
-  });
-
   afterEach(() => {
     if (domain.active) {
       domain.active.exit();
@@ -44,26 +12,20 @@ describe('domains', () => {
   test('without domain', () => {
     expect(domain.active).toBeFalsy();
     const hub = getCurrentHub();
-    expect(hub).toBe(globalHub);
+    expect(hub).toEqual(new Hub());
   });
 
-  test('domain hub inheritance', () => {
-    globalHub.stack = [];
-    const d = domain.create();
-    d.run(() => {
-      const hub = getCurrentHub();
-      expect(globalHub).not.toBe(hub);
-      expect(globalHub.getStack()).toEqual(hub.getStack());
+  test('domain hub scope inheritance', () => {
+    const globalHub = getCurrentHub();
+    globalHub.configureScope(scope => {
+      scope.setExtra('a', 'b');
+      scope.setTag('a', 'b');
+      scope.addBreadcrumb({ message: 'a' });
     });
-  });
-
-  test('domain hub isolation', () => {
     const d = domain.create();
     d.run(() => {
       const hub = getCurrentHub();
-      hub.getStack().push({ client: 'whatever' });
-      expect(hub.getStack()).toEqual([{ client: 'whatever' }]);
-      expect(globalHub.getStack()).toEqual([]);
+      expect(globalHub).toEqual(hub);
     });
   });
 
@@ -84,7 +46,7 @@ describe('domains', () => {
         .push({ client: 'process' });
 
       setTimeout(() => {
-        expect(getCurrentHub().getStack()).toEqual([{ client: 'process' }]);
+        expect(getCurrentHub().getStack()[1]).toEqual({ client: 'process' });
       }, 50);
     });
 
@@ -94,7 +56,7 @@ describe('domains', () => {
         .push({ client: 'local' });
 
       setTimeout(() => {
-        expect(getCurrentHub().getStack()).toEqual([{ client: 'local' }]);
+        expect(getCurrentHub().getStack()[1]).toEqual({ client: 'local' });
         done();
       }, 100);
     });
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 58625868fbc4..18ba3a40eb32 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -27,7 +27,7 @@
   },
   "scripts": {
     "build": "run-s clean; tsc -p tsconfig.build.json",
-    "build:watch": "run-s clean; tsc -p tsconfig.build.json -w --preserveWatchOutput",
+    "build:watch": "tsc -p tsconfig.build.json -w --preserveWatchOutput",
     "clean": "rimraf dist coverage *.js *.js.map *.d.ts",
     "lint": "run-s lint:prettier lint:tslint",
     "lint:prettier": "prettier-check '{src,test}/**/*.ts'",
diff --git a/yarn.lock b/yarn.lock
index 72cb713871e8..d2b3cf3aa6fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -731,6 +731,12 @@ abbrev@1.0.x:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
 
+abstract-leveldown@~0.12.0, abstract-leveldown@~0.12.1:
+  version "0.12.4"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-0.12.4.tgz#29e18e632e60e4e221d5810247852a63d7b2e410"
+  dependencies:
+    xtend "~3.0.0"
+
 accepts@~1.3.4, accepts@~1.3.5:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
@@ -760,6 +766,10 @@ addressparser@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
 
+adm-zip@~0.4.3:
+  version "0.4.11"
+  resolved "https://registry.yarnpkg.com/adm-zip/-/adm-zip-0.4.11.tgz#2aa54c84c4b01a9d0fb89bb11982a51f13e3d62a"
+
 after@0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
@@ -892,6 +902,30 @@ aproba@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-2.0.0.tgz#52520b8ae5b569215b354efc0caa3fe1e45a8adc"
 
+archiver-utils@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/archiver-utils/-/archiver-utils-1.3.0.tgz#e50b4c09c70bf3d680e32ff1b7994e9f9d895174"
+  dependencies:
+    glob "^7.0.0"
+    graceful-fs "^4.1.0"
+    lazystream "^1.0.0"
+    lodash "^4.8.0"
+    normalize-path "^2.0.0"
+    readable-stream "^2.0.0"
+
+archiver@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/archiver/-/archiver-2.1.1.tgz#ff662b4a78201494a3ee544d3a33fe7496509ebc"
+  dependencies:
+    archiver-utils "^1.3.0"
+    async "^2.0.0"
+    buffer-crc32 "^0.2.1"
+    glob "^7.0.0"
+    lodash "^4.8.0"
+    readable-stream "^2.0.0"
+    tar-stream "^1.5.0"
+    zip-stream "^1.2.0"
+
 are-we-there-yet@~1.1.2:
   version "1.1.5"
   resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
@@ -1081,7 +1115,13 @@ async@1.x, async@^1.4.0:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
-async@^2.0.1, async@^2.1.4, async@^2.3.0, async@^2.4.0, async@^2.5.0, async@~2.6.0:
+async@2.0.1:
+  version "2.0.1"
+  resolved "http://registry.npmjs.org/async/-/async-2.0.1.tgz#b709cc0280a9c36f09f4536be823c838a9049e25"
+  dependencies:
+    lodash "^4.8.0"
+
+async@^2.0.0, async@^2.0.1, async@^2.1.2, async@^2.1.4, async@^2.3.0, async@^2.4.0, async@^2.5.0, async@~2.6.0:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
   dependencies:
@@ -1671,6 +1711,19 @@ bitsyntax@~0.0.4:
   dependencies:
     buffer-more-ints "0.0.2"
 
+bl@^1.0.0:
+  version "1.2.2"
+  resolved "http://registry.npmjs.org/bl/-/bl-1.2.2.tgz#a160911717103c07410cef63ef51b397c025af9c"
+  dependencies:
+    readable-stream "^2.3.5"
+    safe-buffer "^5.1.1"
+
+bl@~0.8.1:
+  version "0.8.2"
+  resolved "http://registry.npmjs.org/bl/-/bl-0.8.2.tgz#c9b6bca08d1bc2ea00fc8afb4f1a5fd1e1c66e4e"
+  dependencies:
+    readable-stream "~1.0.26"
+
 bl@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/bl/-/bl-1.1.2.tgz#fdca871a99713aa00d19e3bbba41c44787a65398"
@@ -1724,6 +1777,18 @@ boom@2.x.x:
   dependencies:
     hoek "2.x.x"
 
+boom@4.x.x:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/boom/-/boom-4.3.1.tgz#4f8a3005cb4a7e3889f749030fd25b96e01d2e31"
+  dependencies:
+    hoek "4.x.x"
+
+boom@5.x.x:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/boom/-/boom-5.2.0.tgz#5dd9da6ee3a5f302077436290cb717d3f4a54e02"
+  dependencies:
+    hoek "4.x.x"
+
 boxen@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/boxen/-/boxen-1.1.0.tgz#b1b69dd522305e807a99deee777dbd6e5167b102"
@@ -1798,9 +1863,9 @@ browser-resolve@^1.11.0, browser-resolve@^1.11.2:
   dependencies:
     resolve "1.1.7"
 
-browser-stdout@1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
+browser-stdout@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
 
 browserify-aes@^1.0.0, browserify-aes@^1.0.4:
   version "1.2.0"
@@ -1829,6 +1894,14 @@ browserify-des@^1.0.0:
     des.js "^1.0.0"
     inherits "^2.0.1"
 
+browserify-fs@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/browserify-fs/-/browserify-fs-1.0.0.tgz#f075aa8a729d4d1716d066620e386fcc1311a96f"
+  dependencies:
+    level-filesystem "^1.0.1"
+    level-js "^2.1.3"
+    levelup "^0.18.2"
+
 browserify-rsa@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
@@ -1871,10 +1944,33 @@ btoa-lite@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/btoa-lite/-/btoa-lite-1.0.0.tgz#337766da15801210fdd956c22e9c6891ab9d0337"
 
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+
+buffer-alloc@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
+buffer-crc32@^0.2.1:
+  version "0.2.13"
+  resolved "https://registry.yarnpkg.com/buffer-crc32/-/buffer-crc32-0.2.13.tgz#0d333e3f00eac50aa1454abd30ef8c2a5d9a7242"
+
 buffer-equal-constant-time@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz#f8e71132f7ffe6e01a5c9697a4c6f3e48d5cc819"
 
+buffer-es6@^4.9.2:
+  version "4.9.3"
+  resolved "https://registry.yarnpkg.com/buffer-es6/-/buffer-es6-4.9.3.tgz#f26347b82df76fd37e18bcb5288c4970cfd5c404"
+
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+
 buffer-from@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.0.tgz#87fcaa3a298358e0ade6e442cfce840740d1ad04"
@@ -1894,6 +1990,13 @@ buffer@^5.0.6:
     base64-js "^1.0.2"
     ieee754 "^1.1.4"
 
+buffer@^5.1.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-5.2.1.tgz#dd57fa0f109ac59c602479044dca7b8b3d0b71d6"
+  dependencies:
+    base64-js "^1.0.2"
+    ieee754 "^1.1.4"
+
 buildmail@4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/buildmail/-/buildmail-4.0.1.tgz#877f7738b78729871c9a105e3b837d2be11a7a72"
@@ -2194,6 +2297,10 @@ clone@^1.0.2:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.4.tgz#da309cc263df15994c688ca902179ca3c7cd7c7e"
 
+clone@~0.1.9:
+  version "0.1.19"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-0.1.19.tgz#613fb68639b26a494ac53253e15b1a6bd88ada85"
+
 cmd-shim@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/cmd-shim/-/cmd-shim-2.0.2.tgz#6fcbda99483a8fd15d7d30a196ca69d688a2efdb"
@@ -2270,7 +2377,11 @@ combined-stream@1.0.6, combined-stream@^1.0.5, combined-stream@~1.0.5:
   dependencies:
     delayed-stream "~1.0.0"
 
-commander@2.15.1, commander@^2.12.1, commander@^2.9.0:
+commander@2.11.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
+
+commander@^2.12.1, commander@^2.9.0:
   version "2.15.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
 
@@ -2317,6 +2428,15 @@ component-inherit@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
 
+compress-commons@^1.2.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/compress-commons/-/compress-commons-1.2.2.tgz#524a9f10903f3a813389b0225d27c48bb751890f"
+  dependencies:
+    buffer-crc32 "^0.2.1"
+    crc32-stream "^2.0.0"
+    normalize-path "^2.0.0"
+    readable-stream "^2.0.0"
+
 compressible@^2.0.12:
   version "2.0.14"
   resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.14.tgz#326c5f507fbb055f54116782b969a81b67a29da7"
@@ -2345,7 +2465,7 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
 
-concat-stream@^1.5.0, concat-stream@^1.6.0:
+concat-stream@^1.4.4, concat-stream@^1.5.0, concat-stream@^1.6.0:
   version "1.6.2"
   resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
   dependencies:
@@ -2534,6 +2654,19 @@ cpx@^1.5.0:
     shell-quote "^1.6.1"
     subarg "^1.0.0"
 
+crc32-stream@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/crc32-stream/-/crc32-stream-2.0.0.tgz#e3cdd3b4df3168dd74e3de3fbbcb7b297fe908f4"
+  dependencies:
+    crc "^3.4.4"
+    readable-stream "^2.0.0"
+
+crc@^3.4.4:
+  version "3.8.0"
+  resolved "https://registry.yarnpkg.com/crc/-/crc-3.8.0.tgz#ad60269c2c856f8c299e2c4cc0de4556914056c6"
+  dependencies:
+    buffer "^5.1.0"
+
 create-ecdh@^4.0.0:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/create-ecdh/-/create-ecdh-4.0.3.tgz#c9111b6f33045c4697f144787f9254cdc77c45ff"
@@ -2603,7 +2736,13 @@ cryptiles@2.x.x:
   dependencies:
     boom "2.x.x"
 
-crypto-browserify@^3.11.1:
+cryptiles@3.x.x:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-3.1.2.tgz#a89fbb220f5ce25ec56e8c4aa8a4fd7b5b0d29fe"
+  dependencies:
+    boom "5.x.x"
+
+crypto-browserify@^3.11.0, crypto-browserify@^3.11.1:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
   dependencies:
@@ -2818,6 +2957,12 @@ defaults@^1.0.3:
   dependencies:
     clone "^1.0.2"
 
+deferred-leveldown@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-0.2.0.tgz#2cef1f111e1c57870d8bbb8af2650e587cd2f5b4"
+  dependencies:
+    abstract-leveldown "~0.12.1"
+
 define-properties@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.2.tgz#83a73f2fea569898fb737193c8f873caf6d45c94"
@@ -2911,7 +3056,11 @@ di@^0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/di/-/di-0.0.1.tgz#806649326ceaa7caa3306d75d985ea2748ba913c"
 
-diff@3.5.0, diff@^3.2.0, diff@^3.5.0:
+diff@3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.3.1.tgz#aa8567a6eed03c531fc89d3f711cd0e5259dec75"
+
+diff@^3.2.0, diff@^3.5.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
 
@@ -3077,6 +3226,12 @@ err-code@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/err-code/-/err-code-1.1.2.tgz#06e0116d3028f6aef4806849eb0ea6a748ae6960"
 
+errno@^0.1.1, errno@~0.1.1:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
+  dependencies:
+    prr "~1.0.1"
+
 error-ex@^1.2.0, error-ex@^1.3.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
@@ -3530,7 +3685,7 @@ for-own@^0.1.4:
   dependencies:
     for-in "^1.0.1"
 
-foreach@^2.0.5:
+foreach@^2.0.5, foreach@~2.0.1:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/foreach/-/foreach-2.0.5.tgz#0bee005018aeb260d0a3af3ae658dd0136ec1b99"
 
@@ -3589,6 +3744,10 @@ fs-access@^1.0.0:
   dependencies:
     null-check "^1.0.0"
 
+fs-constants@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
+
 fs-exists-sync@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/fs-exists-sync/-/fs-exists-sync-0.1.0.tgz#982d6893af918e72d08dec9e8673ff2b5a8d6add"
@@ -3671,6 +3830,12 @@ function-bind@^1.0.2, function-bind@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
 
+fwd-stream@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/fwd-stream/-/fwd-stream-1.0.4.tgz#ed281cabed46feecf921ee32dc4c50b372ac7cfa"
+  dependencies:
+    readable-stream "~1.0.26-4"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -3941,13 +4106,13 @@ got@^6.7.1:
     unzip-response "^2.0.1"
     url-parse-lax "^1.0.0"
 
-graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
+graceful-fs@^4.1.0, graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-growl@1.10.5:
-  version "1.10.5"
-  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
+growl@1.10.3:
+  version "1.10.3"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.3.tgz#1926ba90cf3edfe2adb4927f5880bc22c66c790f"
 
 growly@^1.3.0:
   version "1.3.0"
@@ -4118,6 +4283,15 @@ hawk@~3.1.3:
     hoek "2.x.x"
     sntp "1.x.x"
 
+hawk@~6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/hawk/-/hawk-6.0.2.tgz#af4d914eb065f9b5ce4d9d11c1cb2126eecc3038"
+  dependencies:
+    boom "4.x.x"
+    cryptiles "3.x.x"
+    hoek "4.x.x"
+    sntp "2.x.x"
+
 he@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
@@ -4145,6 +4319,10 @@ hoek@2.x.x:
   version "2.16.3"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
 
+hoek@4.x.x:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/hoek/-/hoek-4.2.1.tgz#9634502aa12c445dd5a7c5734b572bb8738aacbb"
+
 home-or-tmp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
@@ -4264,6 +4442,10 @@ iconv-lite@^0.4.24, iconv-lite@~0.4.13:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
+idb-wrapper@^1.5.0:
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/idb-wrapper/-/idb-wrapper-1.7.2.tgz#8251afd5e77fe95568b1c16152eb44b396767ea2"
+
 ieee754@^1.1.4:
   version "1.1.12"
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.12.tgz#50bf24e5b9c8bb98af4964c941cdb0918da7b60b"
@@ -4307,7 +4489,7 @@ indent-string@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
 
-indexof@0.0.1:
+indexof@0.0.1, indexof@~0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
 
@@ -4591,6 +4773,10 @@ is-obj@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
 
+is-object@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/is-object/-/is-object-0.1.2.tgz#00efbc08816c33cfc4ac8251d132e10dc65098d7"
+
 is-odd@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
@@ -4679,6 +4865,10 @@ is@^3.0.1, is@^3.2.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/is/-/is-3.2.1.tgz#d0ac2ad55eb7b0bec926a5266f6c662aaa83dca5"
 
+is@~0.2.6:
+  version "0.2.7"
+  resolved "http://registry.npmjs.org/is/-/is-0.2.7.tgz#3b34a2c48f359972f35042849193ae7264b63562"
+
 isarray@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
@@ -4695,6 +4885,10 @@ isbinaryfile@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-3.0.2.tgz#4a3e974ec0cba9004d3fc6cde7209ea69368a621"
 
+isbuffer@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/isbuffer/-/isbuffer-0.0.0.tgz#38c146d9df528b8bf9b0701c3d43cf12df3fc39b"
+
 isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
@@ -5276,6 +5470,15 @@ karma-rollup-preprocessor@^6.0.0:
   dependencies:
     chokidar "^2.0.0"
 
+karma-sauce-launcher@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/karma-sauce-launcher/-/karma-sauce-launcher-1.2.0.tgz#6f2558ddef3cf56879fa27540c8ae9f8bfd16bca"
+  dependencies:
+    q "^1.5.0"
+    sauce-connect-launcher "^1.2.2"
+    saucelabs "^1.4.0"
+    wd "^1.4.0"
+
 karma-sinon@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/karma-sinon/-/karma-sinon-1.0.5.tgz#4e3443f2830fdecff624d3747163f1217daa2a9a"
@@ -5405,6 +5608,12 @@ lazy-req@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/lazy-req/-/lazy-req-2.0.0.tgz#c9450a363ecdda2e6f0c70132ad4f37f8f06f2b4"
 
+lazystream@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lazystream/-/lazystream-1.0.0.tgz#f6995fe0f820392f61396be89462407bb77168e4"
+  dependencies:
+    readable-stream "^2.0.5"
+
 lcid@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
@@ -5443,6 +5652,82 @@ lerna@3.4.0:
     import-local "^1.0.0"
     npmlog "^4.1.2"
 
+level-blobs@^0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/level-blobs/-/level-blobs-0.1.7.tgz#9ab9b97bb99f1edbf9f78a3433e21ed56386bdaf"
+  dependencies:
+    level-peek "1.0.6"
+    once "^1.3.0"
+    readable-stream "^1.0.26-4"
+
+level-filesystem@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/level-filesystem/-/level-filesystem-1.2.0.tgz#a00aca9919c4a4dfafdca6a8108d225aadff63b3"
+  dependencies:
+    concat-stream "^1.4.4"
+    errno "^0.1.1"
+    fwd-stream "^1.0.4"
+    level-blobs "^0.1.7"
+    level-peek "^1.0.6"
+    level-sublevel "^5.2.0"
+    octal "^1.0.0"
+    once "^1.3.0"
+    xtend "^2.2.0"
+
+level-fix-range@2.0:
+  version "2.0.0"
+  resolved "http://registry.npmjs.org/level-fix-range/-/level-fix-range-2.0.0.tgz#c417d62159442151a19d9a2367868f1724c2d548"
+  dependencies:
+    clone "~0.1.9"
+
+level-fix-range@~1.0.2:
+  version "1.0.2"
+  resolved "http://registry.npmjs.org/level-fix-range/-/level-fix-range-1.0.2.tgz#bf15b915ae36d8470c821e883ddf79cd16420828"
+
+"level-hooks@>=4.4.0 <5":
+  version "4.5.0"
+  resolved "http://registry.npmjs.org/level-hooks/-/level-hooks-4.5.0.tgz#1b9ae61922930f3305d1a61fc4d83c8102c0dd93"
+  dependencies:
+    string-range "~1.2"
+
+level-js@^2.1.3:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/level-js/-/level-js-2.2.4.tgz#bc055f4180635d4489b561c9486fa370e8c11697"
+  dependencies:
+    abstract-leveldown "~0.12.0"
+    idb-wrapper "^1.5.0"
+    isbuffer "~0.0.0"
+    ltgt "^2.1.2"
+    typedarray-to-buffer "~1.0.0"
+    xtend "~2.1.2"
+
+level-peek@1.0.6, level-peek@^1.0.6:
+  version "1.0.6"
+  resolved "http://registry.npmjs.org/level-peek/-/level-peek-1.0.6.tgz#bec51c72a82ee464d336434c7c876c3fcbcce77f"
+  dependencies:
+    level-fix-range "~1.0.2"
+
+level-sublevel@^5.2.0:
+  version "5.2.3"
+  resolved "http://registry.npmjs.org/level-sublevel/-/level-sublevel-5.2.3.tgz#744c12c72d2e72be78dde3b9b5cd84d62191413a"
+  dependencies:
+    level-fix-range "2.0"
+    level-hooks ">=4.4.0 <5"
+    string-range "~1.2.1"
+    xtend "~2.0.4"
+
+levelup@^0.18.2:
+  version "0.18.6"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-0.18.6.tgz#e6a01cb089616c8ecc0291c2a9bd3f0c44e3e5eb"
+  dependencies:
+    bl "~0.8.1"
+    deferred-leveldown "~0.2.0"
+    errno "~0.1.1"
+    prr "~0.0.0"
+    readable-stream "~1.0.26"
+    semver "~2.3.1"
+    xtend "~3.0.0"
+
 leven@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
@@ -5585,13 +5870,17 @@ lodash.templatesettings@^4.0.0:
   dependencies:
     lodash._reinterpolate "~3.0.0"
 
+lodash@4.17.10, lodash@^4.0.0, lodash@^4.13.1, lodash@^4.15.0, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.5.0:
+  version "4.17.10"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+
 lodash@4.17.5:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
 
-lodash@^4.0.0, lodash@^4.13.1, lodash@^4.15.0, lodash@^4.17.0, lodash@^4.17.10, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.1, lodash@^4.5.0:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+lodash@^4.16.6, lodash@^4.8.0:
+  version "4.17.11"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
 
 log-driver@1.2.7:
   version "1.2.7"
@@ -5678,6 +5967,10 @@ lsmod@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lsmod/-/lsmod-1.0.0.tgz#9a00f76dca36eb23fa05350afe1b585d4299e64b"
 
+ltgt@^2.1.2:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"
+
 macos-release@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/macos-release/-/macos-release-1.1.0.tgz#831945e29365b470aa8724b0ab36c8f8959d10fb"
@@ -5993,7 +6286,7 @@ minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
 
-"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
+"minimatch@2 || 3", minimatch@^3.0.0, minimatch@^3.0.2, minimatch@^3.0.3, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -6059,21 +6352,20 @@ mkdirp@0.5.1, mkdirp@0.5.x, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdi
   dependencies:
     minimist "0.0.8"
 
-mocha@^5.1.1:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.2.0.tgz#6d8ae508f59167f940f2b5b3c4a612ae50c90ae6"
+mocha@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-4.1.0.tgz#7d86cfbcf35cb829e2754c32e17355ec05338794"
   dependencies:
-    browser-stdout "1.3.1"
-    commander "2.15.1"
+    browser-stdout "1.3.0"
+    commander "2.11.0"
     debug "3.1.0"
-    diff "3.5.0"
+    diff "3.3.1"
     escape-string-regexp "1.0.5"
     glob "7.1.2"
-    growl "1.10.5"
+    growl "1.10.3"
     he "1.1.1"
-    minimatch "3.0.4"
     mkdirp "0.5.1"
-    supports-color "5.4.0"
+    supports-color "4.4.0"
 
 mock-require@^2.0.2:
   version "2.0.2"
@@ -6459,6 +6751,18 @@ object-keys@^1.0.8:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
 
+object-keys@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-0.2.0.tgz#cddec02998b091be42bf1035ae32e49f1cb6ea67"
+  dependencies:
+    foreach "~2.0.1"
+    indexof "~0.0.1"
+    is "~0.2.6"
+
+object-keys@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-0.4.0.tgz#28a6aae7428dd2c3a92f3d95f21335dd204e0336"
+
 object-visit@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
@@ -6485,6 +6789,10 @@ object.pick@^1.3.0:
   dependencies:
     isobject "^3.0.1"
 
+octal@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/octal/-/octal-1.0.0.tgz#63e7162a68efbeb9e213588d58e989d1e5c4530b"
+
 on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
@@ -6986,6 +7294,10 @@ private@^0.1.6, private@^0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
 
+process-es6@^0.11.2:
+  version "0.11.6"
+  resolved "https://registry.yarnpkg.com/process-es6/-/process-es6-0.11.6.tgz#c6bb389f9a951f82bd4eb169600105bd2ff9c778"
+
 process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
@@ -7052,6 +7364,14 @@ proxy-from-env@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/proxy-from-env/-/proxy-from-env-1.0.0.tgz#33c50398f70ea7eb96d21f7b817630a55791c7ee"
 
+prr@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"
+
+prr@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
+
 ps-tree@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/ps-tree/-/ps-tree-1.1.0.tgz#b421b24140d6203f1ed3c76996b4427b08e8c014"
@@ -7110,7 +7430,11 @@ punycode@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
 
-q@^1.5.1:
+q@1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
+
+q@^1.5.0, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
 
@@ -7256,7 +7580,7 @@ read@1, read@~1.0.1:
   dependencies:
     mute-stream "~0.0.4"
 
-"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.6:
+"readable-stream@1 || 2", readable-stream@2, readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.0, readable-stream@^2.3.3, readable-stream@^2.3.5, readable-stream@^2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
@@ -7268,7 +7592,7 @@ read@1, read@~1.0.1:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
-readable-stream@1.1.x, "readable-stream@1.x >=1.1.9", readable-stream@^1.1.7:
+readable-stream@1.1.x, "readable-stream@1.x >=1.1.9", readable-stream@^1.0.26-4, readable-stream@^1.1.7:
   version "1.1.14"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
   dependencies:
@@ -7277,6 +7601,15 @@ readable-stream@1.1.x, "readable-stream@1.x >=1.1.9", readable-stream@^1.1.7:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
+readable-stream@~1.0.26, readable-stream@~1.0.26-4:
+  version "1.0.34"
+  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
 readable-stream@~2.0.0, readable-stream@~2.0.5:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
@@ -7493,6 +7826,33 @@ request@2.75.x:
     tough-cookie "~2.3.0"
     tunnel-agent "~0.4.1"
 
+request@2.85.0:
+  version "2.85.0"
+  resolved "http://registry.npmjs.org/request/-/request-2.85.0.tgz#5a03615a47c61420b3eb99b7dba204f83603e1fa"
+  dependencies:
+    aws-sign2 "~0.7.0"
+    aws4 "^1.6.0"
+    caseless "~0.12.0"
+    combined-stream "~1.0.5"
+    extend "~3.0.1"
+    forever-agent "~0.6.1"
+    form-data "~2.3.1"
+    har-validator "~5.0.3"
+    hawk "~6.0.2"
+    http-signature "~1.2.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.17"
+    oauth-sign "~0.8.2"
+    performance-now "^2.1.0"
+    qs "~6.5.1"
+    safe-buffer "^5.1.1"
+    stringstream "~0.0.5"
+    tough-cookie "~2.3.3"
+    tunnel-agent "^0.6.0"
+    uuid "^3.1.0"
+
 "request@>=2.9.0 <2.82.0":
   version "2.81.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.81.0.tgz#c6928946a0e06c5f8d6f8a9333469ffda46298a0"
@@ -7666,6 +8026,15 @@ rollup-plugin-license@^0.6.0:
     mkdirp "0.5.1"
     moment "2.21.0"
 
+rollup-plugin-node-builtins@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/rollup-plugin-node-builtins/-/rollup-plugin-node-builtins-2.1.2.tgz#24a1fed4a43257b6b64371d8abc6ce1ab14597e9"
+  dependencies:
+    browserify-fs "^1.0.0"
+    buffer-es6 "^4.9.2"
+    crypto-browserify "^3.11.0"
+    process-es6 "^0.11.2"
+
 rollup-plugin-node-resolve@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/rollup-plugin-node-resolve/-/rollup-plugin-node-resolve-3.3.0.tgz#c26d110a36812cbefa7ce117cadcd3439aa1c713"
@@ -7762,6 +8131,22 @@ sane@^2.0.0:
   optionalDependencies:
     fsevents "^1.2.3"
 
+sauce-connect-launcher@^1.2.2:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/sauce-connect-launcher/-/sauce-connect-launcher-1.2.4.tgz#8d38f85242a9fbede1b2303b559f7e20c5609a1c"
+  dependencies:
+    adm-zip "~0.4.3"
+    async "^2.1.2"
+    https-proxy-agent "^2.2.1"
+    lodash "^4.16.6"
+    rimraf "^2.5.4"
+
+saucelabs@^1.4.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.5.0.tgz#9405a73c360d449b232839919a86c396d379fd9d"
+  dependencies:
+    https-proxy-agent "^2.2.1"
+
 sax@^1.2.4:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
@@ -7780,6 +8165,10 @@ semver@^5.0.1, semver@^5.0.3, semver@^5.1.0:
   version "5.5.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.1.tgz#7dfdd8814bdb7cabc7be0fb1d734cfb66c940477"
 
+semver@~2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-2.3.2.tgz#b9848f25d6cf36333073ec9ef8856d42f1233e52"
+
 semver@~5.3.0:
   version "5.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.3.0.tgz#9b2ce5d3de02d17c6012ad326aa6b4d0cf54f94f"
@@ -7981,6 +8370,12 @@ sntp@1.x.x:
   dependencies:
     hoek "2.x.x"
 
+sntp@2.x.x:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/sntp/-/sntp-2.1.0.tgz#2c6cec14fedc2222739caf9b5c3d85d1cc5a2cc8"
+  dependencies:
+    hoek "4.x.x"
+
 socket.io-adapter@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.1.tgz#2a805e8a14d6372124dd9159ad4502f8cb07f06b"
@@ -8284,6 +8679,10 @@ string-length@^2.0.0:
     astral-regex "^1.0.0"
     strip-ansi "^4.0.0"
 
+string-range@~1.2, string-range@~1.2.1:
+  version "1.2.2"
+  resolved "http://registry.npmjs.org/string-range/-/string-range-1.2.2.tgz#a893ed347e72299bc83befbbf2a692a8d239d5dd"
+
 string-similarity@1.1.0:
   version "1.1.0"
   resolved "http://registry.npmjs.org/string-similarity/-/string-similarity-1.1.0.tgz#3c66498858a465ec7c40c7d81739bbd995904914"
@@ -8323,7 +8722,7 @@ string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
 
-stringstream@~0.0.4:
+stringstream@~0.0.4, stringstream@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
 
@@ -8386,11 +8785,11 @@ subarg@^1.0.0:
   dependencies:
     minimist "^1.1.0"
 
-supports-color@5.4.0, supports-color@^5.3.0, supports-color@^5.4.0:
-  version "5.4.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
+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 "^3.0.0"
+    has-flag "^2.0.0"
 
 supports-color@^2.0.0:
   version "2.0.0"
@@ -8408,6 +8807,12 @@ supports-color@^5.0.0:
   dependencies:
     has-flag "^3.0.0"
 
+supports-color@^5.3.0, supports-color@^5.4.0:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
+  dependencies:
+    has-flag "^3.0.0"
+
 supports-hyperlinks@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/supports-hyperlinks/-/supports-hyperlinks-1.0.1.tgz#71daedf36cc1060ac5100c351bb3da48c29c0ef7"
@@ -8419,6 +8824,18 @@ symbol-tree@^3.2.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/symbol-tree/-/symbol-tree-3.2.2.tgz#ae27db38f660a7ae2e1c3b7d1bc290819b8519e6"
 
+tar-stream@^1.5.0:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/tar-stream/-/tar-stream-1.6.2.tgz#8ea55dab37972253d9a9af90fdcd559ae435c555"
+  dependencies:
+    bl "^1.0.0"
+    buffer-alloc "^1.2.0"
+    end-of-stream "^1.0.0"
+    fs-constants "^1.0.0"
+    readable-stream "^2.3.0"
+    to-buffer "^1.1.1"
+    xtend "^4.0.0"
+
 tar@^2.0.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/tar/-/tar-2.2.1.tgz#8e4d2a256c0e2185c6b18ad694aec968b83cb1d1"
@@ -8560,6 +8977,10 @@ to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
 
+to-buffer@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/to-buffer/-/to-buffer-1.1.1.tgz#493bd48f62d7c43fcded313a03dcadb2e1213a80"
+
 to-fast-properties@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
@@ -8713,6 +9134,10 @@ type-is@~1.6.16:
     media-typer "0.3.0"
     mime-types "~2.1.18"
 
+typedarray-to-buffer@~1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-1.0.4.tgz#9bb8ba0e841fb3f4cf1fe7c245e9f3fa8a5fe99c"
+
 typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
@@ -8969,6 +9394,10 @@ validate-npm-package-name@^3.0.0:
   dependencies:
     builtins "^1.0.3"
 
+vargs@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/vargs/-/vargs-0.1.0.tgz#6b6184da6520cc3204ce1b407cac26d92609ebff"
+
 vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
@@ -9028,6 +9457,18 @@ wcwidth@^1.0.0, wcwidth@^1.0.1:
   dependencies:
     defaults "^1.0.3"
 
+wd@^1.4.0:
+  version "1.10.3"
+  resolved "https://registry.yarnpkg.com/wd/-/wd-1.10.3.tgz#395ac7eb58a98e556369f8f8e5f845d91fb152a3"
+  dependencies:
+    archiver "2.1.1"
+    async "2.0.1"
+    lodash "4.17.10"
+    mkdirp "^0.5.1"
+    q "1.4.1"
+    request "2.85.0"
+    vargs "0.1.0"
+
 webidl-conversions@^4.0.2:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
@@ -9188,10 +9629,31 @@ xregexp@4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/xregexp/-/xregexp-4.0.0.tgz#e698189de49dd2a18cc5687b05e17c8e43943020"
 
+xtend@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.2.0.tgz#eef6b1f198c1c8deafad8b1765a04dad4a01c5a9"
+
 xtend@^4.0.0, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
 
+xtend@~2.0.4:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.0.6.tgz#5ea657a6dba447069c2e59c58a1138cb0c5e6cee"
+  dependencies:
+    is-object "~0.1.2"
+    object-keys "~0.2.0"
+
+xtend@~2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.1.2.tgz#6efecc2a4dad8e6962c4901b337ce7ba87b5d28b"
+  dependencies:
+    object-keys "~0.4.0"
+
+xtend@~3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-3.0.0.tgz#5cce7407baf642cba7becda568111c493f59665a"
+
 y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
@@ -9289,3 +9751,12 @@ yargs@~3.10.0:
 yeast@0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
+
+zip-stream@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"
+  dependencies:
+    archiver-utils "^1.3.0"
+    compress-commons "^1.2.0"
+    lodash "^4.8.0"
+    readable-stream "^2.0.0"