diff --git a/.eslintrc.js b/.eslintrc.js
index 2896e32..0275b28 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -10,12 +10,24 @@ module.exports = {
   ],
   extends: [
     'eslint:recommended',
-    'plugin:ember/recommended'
+    'plugin:ember/recommended',
+    'airbnb-base'
   ],
   env: {
     browser: true
   },
   rules: {
+    // This rule has no support for @ember import system.
+    // Ember build have their own mechanism to managing dependency.
+    // Ember build will raise error on build if there is an import error.
+    'import/extensions': 'off',
+    'import/no-unresolved': 'off',
+    'import/no-extraneous-dependencies': 'off',
+    // Ember use underscore dangling, e.g _super. Which is enforced by ember's
+    // own linter to be used on init() method.
+    'no-underscore-dangle': 'off',
+    // Ember Routes and tests utilize `this` inside their callback.
+    'prefer-arrow-callback': 'off',
   },
   overrides: [
     // node files
diff --git a/.gitignore b/.gitignore
index e9d09ae..8a7580b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,9 +62,15 @@ typings/
 # dotenv environment variables file
 .env
 
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
 # next.js build output
 .next
 
+# nuxt.js build output
+.nuxt
+
 # vuepress build output
 .vuepress/dist
 
@@ -222,7 +228,8 @@ flycheck_*.el
 # Swap
 [._]*.s[a-v][a-z]
 [._]*.sw[a-p]
-[._]s[a-v][a-z]
+[._]s[a-rt-v][a-z]
+[._]ss[a-gi-z]
 [._]sw[a-p]
 
 # Session
@@ -261,8 +268,7 @@ tags
 .idea/**/libraries
 
 # CMake
-cmake-build-debug/
-cmake-build-release/
+cmake-build-*/
 
 # Mongo Explorer plugin
 .idea/**/mongoSettings.xml
@@ -419,6 +425,9 @@ local.properties
 # Code Recommenders
 .recommenders/
 
+# Annotation Processing
+.apt_generated/
+
 # Scala IDE specific (Scala & Java development for Eclipse)
 .cache-main
 .scala_dependencies
@@ -451,3 +460,6 @@ cscope.po.out
 *.patch
 *.orig
 *.diff
+
+# Pytest profile files
+prof/
diff --git a/app/app.js b/app/app.js
index b3b2bd6..8494415 100644
--- a/app/app.js
+++ b/app/app.js
@@ -1,12 +1,12 @@
 import Application from '@ember/application';
-import Resolver from './resolver';
 import loadInitializers from 'ember-load-initializers';
+import Resolver from './resolver';
 import config from './config/environment';
 
 const App = Application.extend({
   modulePrefix: config.modulePrefix,
   podModulePrefix: config.podModulePrefix,
-  Resolver
+  Resolver,
 });
 
 loadInitializers(App, config.modulePrefix);
diff --git a/app/initializers/showdown.js b/app/initializers/showdown.js
index 3e9d71d..bbac212 100644
--- a/app/initializers/showdown.js
+++ b/app/initializers/showdown.js
@@ -1,21 +1,19 @@
 /* global showdown */
 export function initialize() {
   showdown.setFlavor('github');
-  showdown.extension("issueWrap", function() {
-      return [{
-        type: 'html',
-        regex: '<pre>',
-        replace: '<pre style="white-space: pre-wrap">'
-      },
-      {
-        type: 'html',
-        regex: '<p>',
-        replace: '<p style="overflow-wrap: break-word;">'
-      }];
-    });
+  showdown.extension('issueWrap', () => [{
+    type: 'html',
+    regex: '<pre>',
+    replace: '<pre style="white-space: pre-wrap">',
+  },
+  {
+    type: 'html',
+    regex: '<p>',
+    replace: '<p style="overflow-wrap: break-word;">',
+  }]);
 }
 
 export default {
   name: 'showdown',
-  initialize
+  initialize,
 };
diff --git a/config/coverage.js b/config/coverage.js
new file mode 100644
index 0000000..6e62075
--- /dev/null
+++ b/config/coverage.js
@@ -0,0 +1,7 @@
+/* global module */
+
+'use strict';
+
+module.exports = {
+  useBabelInstrumenter: true,
+};
diff --git a/config/environment.js b/config/environment.js
index 39fc94f..3658c81 100644
--- a/config/environment.js
+++ b/config/environment.js
@@ -1,7 +1,7 @@
 'use strict';
 
-module.exports = function(environment) {
-  let ENV = {
+module.exports = function environmentConfig(environment) {
+  const ENV = {
     APP: {
       // Here you can pass flags/options to your application instance
       // when it is created
@@ -13,18 +13,18 @@ module.exports = function(environment) {
       },
       EXTEND_PROTOTYPES: {
         // Prevent Ember Data from overriding Date.parse.
-        Date: false
+        Date: false,
       },
       // LOG_STACKTRACE_ON_DEPRECATION: false,
     },
-    environment: environment,
+    environment,
     locationType: 'auto',
 
     modulePrefix: 'git-task-list',
     rootURL: '/',
     showdown: {
-      simplifiedAutoLink: true
-    }
+      simplifiedAutoLink: true,
+    },
   };
 
   if (environment === 'development') {
@@ -49,7 +49,7 @@ module.exports = function(environment) {
 
   if (environment === 'production') {
     ENV.locationType = 'hash';
-    ENV.rootURL = ENV.rootURL + (process.env.PATH_PREFIX || '');
+    ENV.rootURL += (process.env.PATH_PREFIX || '');
   }
 
   return ENV;
diff --git a/config/targets.js b/config/targets.js
index 8ffae36..cc55392 100644
--- a/config/targets.js
+++ b/config/targets.js
@@ -3,7 +3,7 @@
 const browsers = [
   'last 1 Chrome versions',
   'last 1 Firefox versions',
-  'last 1 Safari versions'
+  'last 1 Safari versions',
 ];
 
 const isCI = !!process.env.CI;
@@ -14,5 +14,5 @@ if (isCI || isProduction) {
 }
 
 module.exports = {
-  browsers
+  browsers,
 };
diff --git a/ember-cli-build.js b/ember-cli-build.js
index d05c0c8..9dedd3f 100644
--- a/ember-cli-build.js
+++ b/ember-cli-build.js
@@ -2,8 +2,8 @@
 
 const EmberApp = require('ember-cli/lib/broccoli/ember-app');
 
-module.exports = function(defaults) {
-  let app = new EmberApp(defaults, {
+module.exports = function emberCliBuild(defaults) {
+  const app = new EmberApp(defaults, {
     // Add options here
   });
 
diff --git a/package.json b/package.json
index b0da5a0..856b42d 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "ember-cli": "~3.1.4",
     "ember-cli-app-version": "^3.2.0",
     "ember-cli-babel": "^6.6.0",
-    "ember-cli-code-coverage": "^0.4.2",
+    "ember-cli-code-coverage": "^1.0.0-beta.4",
     "ember-cli-dependency-checker": "^2.0.0",
     "ember-cli-eslint": "^4.2.1",
     "ember-cli-htmlbars": "^2.0.1",
@@ -43,7 +43,9 @@
     "ember-paper": "^1.0.0-alpha.19",
     "ember-source": "~3.1.0",
     "eslint": "^4.19.1",
+    "eslint-config-airbnb-base": "12.1.0",
     "eslint-plugin-ember": "^5.0.0",
+    "eslint-plugin-import": "^2.7.0",
     "github-api": "https://github.com/github-tools/github/archive/v3.1.0.tar.gz",
     "loader.js": "^4.2.3",
     "remark": "^9.0.0",
diff --git a/testem.js b/testem.js
index d1755a4..307436f 100644
--- a/testem.js
+++ b/testem.js
@@ -1,11 +1,14 @@
+
+'use strict';
+
 module.exports = {
   test_page: 'tests/index.html?hidepassed',
   disable_watching: true,
   launch_in_ci: [
-    'Chrome'
+    'Chrome',
   ],
   launch_in_dev: [
-    'Chrome'
+    'Chrome',
   ],
   browser_args: {
     Chrome: {
@@ -17,8 +20,8 @@ module.exports = {
         '--disable-gpu',
         '--headless',
         '--remote-debugging-port=0',
-        '--window-size=1440,900'
-      ].filter(Boolean)
-    }
-  }
+        '--window-size=1440,900',
+      ].filter(Boolean),
+    },
+  },
 };
diff --git a/tests/test-helper.js b/tests/test-helper.js
index 0382a84..f3032a1 100644
--- a/tests/test-helper.js
+++ b/tests/test-helper.js
@@ -1,7 +1,7 @@
-import Application from '../app';
-import config from '../config/environment';
 import { setApplication } from '@ember/test-helpers';
 import { start } from 'ember-qunit';
+import Application from '../app';
+import config from '../config/environment';
 
 setApplication(Application.create(config.APP));
 
diff --git a/tests/unit/controllers/application-test.js b/tests/unit/controllers/application-test.js
index b71b4a5..982ade2 100644
--- a/tests/unit/controllers/application-test.js
+++ b/tests/unit/controllers/application-test.js
@@ -6,7 +6,7 @@ moduleFor('controller:application', 'Unit | Controller | application', {
 });
 
 // Replace this with your real tests.
-test('it exists', function(assert) {
-  let controller = this.subject();
+test('it exists', function applicationControllerTest(assert) {
+  const controller = this.subject();
   assert.ok(controller);
 });
diff --git a/yarn.lock b/yarn.lock
index 5285582..f039d80 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -42,10 +42,6 @@ abbrev@1, abbrev@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
-abbrev@1.0.x:
-  version "1.0.9"
-  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
-
 accepts@~1.3.4, accepts@~1.3.5:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
@@ -219,6 +215,12 @@ aot-test-generators@^0.1.0:
   dependencies:
     jsesc "^2.5.0"
 
+append-transform@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/append-transform/-/append-transform-1.0.0.tgz#046a52ae582a228bd72f58acfbe2967c678759ab"
+  dependencies:
+    default-require-extensions "^2.0.0"
+
 aproba@^1.0.3, aproba@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
@@ -326,7 +328,7 @@ arraybuffer.slice@~0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
 
-arrify@^1.0.0:
+arrify@^1.0.0, arrify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
 
@@ -405,11 +407,11 @@ async-promise-queue@^1.0.3, async-promise-queue@^1.0.4:
     async "^2.4.1"
     debug "^2.6.8"
 
-async@1.x, async@^1.4.0, async@^1.5.2:
+async@^1.4.0, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
-async@^2.4.1:
+async@^2.1.4, async@^2.4.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/async/-/async-2.6.1.tgz#b245a23ca71930044ec53fa46aa00a3e87c6a610"
   dependencies:
@@ -488,7 +490,7 @@ babel-core@^6.24.1, babel-core@^6.26.0:
     slash "^1.0.0"
     source-map "^0.5.7"
 
-babel-generator@^6.26.0:
+babel-generator@^6.18.0, babel-generator@^6.26.0:
   version "6.26.1"
   resolved "https://registry.yarnpkg.com/babel-generator/-/babel-generator-6.26.1.tgz#1844408d3b8f0d35a404ea7ac180f087a601bd90"
   dependencies:
@@ -644,6 +646,15 @@ babel-plugin-htmlbars-inline-precompile@^0.2.3:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/babel-plugin-htmlbars-inline-precompile/-/babel-plugin-htmlbars-inline-precompile-0.2.4.tgz#54b48168432bbc03f1f26f2e9090cb222bc78c75"
 
+babel-plugin-istanbul@^4.1.6:
+  version "4.1.6"
+  resolved "https://registry.yarnpkg.com/babel-plugin-istanbul/-/babel-plugin-istanbul-4.1.6.tgz#36c59b2192efce81c5b378321b74175add1c9a45"
+  dependencies:
+    babel-plugin-syntax-object-rest-spread "^6.13.0"
+    find-up "^2.1.0"
+    istanbul-lib-instrument "^1.10.1"
+    test-exclude "^4.2.1"
+
 babel-plugin-syntax-async-functions@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-async-functions/-/babel-plugin-syntax-async-functions-6.13.0.tgz#cad9cad1191b5ad634bf30ae0872391e0647be95"
@@ -652,6 +663,10 @@ babel-plugin-syntax-exponentiation-operator@^6.8.0:
   version "6.13.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-exponentiation-operator/-/babel-plugin-syntax-exponentiation-operator-6.13.0.tgz#9ee7e8337290da95288201a6a57f4170317830de"
 
+babel-plugin-syntax-object-rest-spread@^6.13.0:
+  version "6.13.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-object-rest-spread/-/babel-plugin-syntax-object-rest-spread-6.13.0.tgz#fd6536f2bce13836ffa3a5458c4903a597bb3bf5"
+
 babel-plugin-syntax-trailing-function-commas@^6.22.0:
   version "6.22.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-trailing-function-commas/-/babel-plugin-syntax-trailing-function-commas-6.22.0.tgz#ba0360937f8d06e40180a43fe0d5616fff532cf3"
@@ -915,7 +930,7 @@ babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
     core-js "^2.4.0"
     regenerator-runtime "^0.11.0"
 
-babel-template@^6.24.1, babel-template@^6.26.0:
+babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
   dependencies:
@@ -925,7 +940,7 @@ babel-template@^6.24.1, babel-template@^6.26.0:
     babylon "^6.18.0"
     lodash "^4.17.4"
 
-babel-traverse@^6.24.1, babel-traverse@^6.26.0:
+babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
   dependencies:
@@ -939,7 +954,7 @@ babel-traverse@^6.24.1, babel-traverse@^6.26.0:
     invariant "^2.2.2"
     lodash "^4.17.4"
 
-babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
+babel-types@^6.18.0, babel-types@^6.19.0, babel-types@^6.24.1, babel-types@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
   dependencies:
@@ -1389,7 +1404,7 @@ broccoli-lint-eslint@^4.2.1:
     lodash.defaultsdeep "^4.6.0"
     md5-hex "^2.0.0"
 
-broccoli-merge-trees@^1.0.0, broccoli-merge-trees@^1.1.0, broccoli-merge-trees@^1.1.1, broccoli-merge-trees@^1.1.2:
+broccoli-merge-trees@^1.0.0, broccoli-merge-trees@^1.1.0, broccoli-merge-trees@^1.1.2:
   version "1.2.4"
   resolved "https://registry.yarnpkg.com/broccoli-merge-trees/-/broccoli-merge-trees-1.2.4.tgz#a001519bb5067f06589d91afa2942445a2d0fdb5"
   dependencies:
@@ -2210,6 +2225,10 @@ common-tags@^1.4.0:
   dependencies:
     babel-runtime "^6.26.0"
 
+compare-versions@^3.1.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/compare-versions/-/compare-versions-3.3.0.tgz#af93ea705a96943f622ab309578b9b90586f39c3"
+
 component-bind@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
@@ -2310,6 +2329,10 @@ constants-browserify@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
 
+contains-path@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"
+
 content-disposition@0.5.2:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
@@ -2528,6 +2551,12 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
+default-require-extensions@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/default-require-extensions/-/default-require-extensions-2.0.0.tgz#f5f8fbb18a7d6d50b21f641f649ebb522cfe24f7"
+  dependencies:
+    strip-bom "^3.0.0"
+
 defaults@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/defaults/-/defaults-1.0.3.tgz#c656051e9817d9ff08ed881477f3fe4019f3ef7d"
@@ -2669,6 +2698,13 @@ diffie-hellman@^5.0.0:
     miller-rabin "^4.0.0"
     randombytes "^2.0.0"
 
+doctrine@1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
+  dependencies:
+    esutils "^2.0.2"
+    isarray "^1.0.0"
+
 doctrine@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
@@ -2836,27 +2872,25 @@ ember-cli-broccoli-sane-watcher@^2.0.4:
     rsvp "^3.0.18"
     sane "^2.4.1"
 
-ember-cli-code-coverage@^0.4.2:
-  version "0.4.2"
-  resolved "https://registry.yarnpkg.com/ember-cli-code-coverage/-/ember-cli-code-coverage-0.4.2.tgz#bd223af453ef0b80e5482cc9958cd9726b5865c7"
+ember-cli-code-coverage@^1.0.0-beta.4:
+  version "1.0.0-beta.4"
+  resolved "https://registry.yarnpkg.com/ember-cli-code-coverage/-/ember-cli-code-coverage-1.0.0-beta.4.tgz#8726d5e754d395702be1b23b0ea9cc08618720e5"
   dependencies:
     babel-core "^6.24.1"
+    babel-plugin-istanbul "^4.1.6"
     babel-plugin-transform-async-to-generator "^6.24.1"
     body-parser "^1.15.0"
-    broccoli-filter "^1.2.3"
-    broccoli-funnel "^1.0.1"
-    broccoli-merge-trees "^1.1.1"
-    ember-cli-babel "^6.8.2"
-    escodegen "^1.8.0"
-    esprima "^3.1.3"
-    exists-sync "0.0.3"
+    co "^4.6.0"
+    ember-cli-babel "^6.6.0"
+    ember-cli-htmlbars "^2.0.1"
+    ember-cli-version-checker "^2.0.0"
     extend "^3.0.0"
-    fs-extra "^0.26.7"
-    istanbul "^0.4.3"
+    fs-extra "^5.0.0"
+    istanbul-api "^1.1.14"
+    lodash.concat "^4.5.0"
     node-dir "^0.1.16"
-    rsvp "^3.2.1"
-    source-map "0.5.6"
-    string.prototype.startswith "^0.2.0"
+    rsvp "^4.8.1"
+    walk-sync "^0.3.2"
 
 ember-cli-dependency-checker@^2.0.0:
   version "2.1.1"
@@ -3683,28 +3717,6 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
-escodegen@1.8.x:
-  version "1.8.1"
-  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.8.1.tgz#5a5b53af4693110bebb0867aa3430dd3b70a1018"
-  dependencies:
-    esprima "^2.7.1"
-    estraverse "^1.9.1"
-    esutils "^2.0.2"
-    optionator "^0.8.1"
-  optionalDependencies:
-    source-map "~0.2.0"
-
-escodegen@^1.8.0:
-  version "1.9.1"
-  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.9.1.tgz#dbae17ef96c8e4bedb1356f4504fa4cc2f7cb7e2"
-  dependencies:
-    esprima "^3.1.3"
-    estraverse "^4.2.0"
-    esutils "^2.0.2"
-    optionator "^0.8.1"
-  optionalDependencies:
-    source-map "~0.6.1"
-
 escope@^3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/escope/-/escope-3.6.0.tgz#e01975e812781a163a6dadfdd80398dc64c889c3"
@@ -3714,6 +3726,26 @@ escope@^3.6.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-config-airbnb-base@12.1.0:
+  version "12.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-airbnb-base/-/eslint-config-airbnb-base-12.1.0.tgz#386441e54a12ccd957b0a92564a4bafebd747944"
+  dependencies:
+    eslint-restricted-globals "^0.1.1"
+
+eslint-import-resolver-node@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/eslint-import-resolver-node/-/eslint-import-resolver-node-0.3.2.tgz#58f15fb839b8d0576ca980413476aab2472db66a"
+  dependencies:
+    debug "^2.6.9"
+    resolve "^1.5.0"
+
+eslint-module-utils@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/eslint-module-utils/-/eslint-module-utils-2.2.0.tgz#b270362cd88b1a48ad308976ce7fa54e98411746"
+  dependencies:
+    debug "^2.6.8"
+    pkg-dir "^1.0.0"
+
 eslint-plugin-ember@^5.0.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-ember/-/eslint-plugin-ember-5.2.0.tgz#fa436e0497dfc01d1d38608229cd616e7c5b6067"
@@ -3721,6 +3753,25 @@ eslint-plugin-ember@^5.0.0:
     ember-rfc176-data "^0.3.3"
     snake-case "^2.1.0"
 
+eslint-plugin-import@^2.7.0:
+  version "2.12.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-import/-/eslint-plugin-import-2.12.0.tgz#dad31781292d6664b25317fd049d2e2b2f02205d"
+  dependencies:
+    contains-path "^0.1.0"
+    debug "^2.6.8"
+    doctrine "1.5.0"
+    eslint-import-resolver-node "^0.3.1"
+    eslint-module-utils "^2.2.0"
+    has "^1.0.1"
+    lodash "^4.17.4"
+    minimatch "^3.0.3"
+    read-pkg-up "^2.0.0"
+    resolve "^1.6.0"
+
+eslint-restricted-globals@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/eslint-restricted-globals/-/eslint-restricted-globals-0.1.1.tgz#35f0d5cbc64c2e3ed62e93b4b1a7af05ba7ed4d7"
+
 eslint-scope@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
@@ -3782,14 +3833,6 @@ espree@^3.5.4:
     acorn "^5.5.0"
     acorn-jsx "^3.0.0"
 
-esprima@2.7.x, esprima@^2.7.1:
-  version "2.7.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
-
-esprima@^3.1.3, esprima@~3.1.0:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
-
 esprima@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
@@ -3798,6 +3841,10 @@ esprima@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.0.0.tgz#53cf247acda77313e551c3aa2e73342d3fb4f7d9"
 
+esprima@~3.1.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+
 esquery@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
@@ -3810,11 +3857,7 @@ esrecurse@^4.1.0:
   dependencies:
     estraverse "^4.1.0"
 
-estraverse@^1.9.1:
-  version "1.9.3"
-  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
-
-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"
 
@@ -4138,6 +4181,13 @@ filename-regex@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
 
+fileset@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/fileset/-/fileset-2.0.3.tgz#8e7548a96d3cc2327ee5e674168723a333bba2a0"
+  dependencies:
+    glob "^7.0.3"
+    minimatch "^3.0.3"
+
 filesize@^3.1.3:
   version "3.6.1"
   resolved "https://registry.yarnpkg.com/filesize/-/filesize-3.6.1.tgz#090bb3ee01b6f801a8a8be99d31710b3422bb317"
@@ -4184,7 +4234,7 @@ find-up@^1.0.0:
     path-exists "^2.0.0"
     pinkie-promise "^2.0.0"
 
-find-up@^2.1.0:
+find-up@^2.0.0, find-up@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/find-up/-/find-up-2.1.0.tgz#45d1b7e506c717ddd482775a2b77920a3c0c57a7"
   dependencies:
@@ -4343,7 +4393,7 @@ fs-extra@^0.24.0:
     path-is-absolute "^1.0.0"
     rimraf "^2.2.8"
 
-fs-extra@^0.26.0, fs-extra@^0.26.7:
+fs-extra@^0.26.0:
   version "0.26.7"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-0.26.7.tgz#9ae1fdd94897798edab76d0918cf42d0c3184fa9"
   dependencies:
@@ -4478,7 +4528,7 @@ fstream@^1.0.0, fstream@^1.0.2, fstream@~1.0.11:
     mkdirp ">=0.5 0"
     rimraf "2"
 
-function-bind@^1.0.2:
+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"
 
@@ -4597,7 +4647,7 @@ glob@7.1.1:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^5.0.10, glob@^5.0.15:
+glob@^5.0.10:
   version "5.0.15"
   resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
   dependencies:
@@ -4749,7 +4799,7 @@ hammerjs@^2.0.6, hammerjs@^2.0.8:
   version "2.0.8"
   resolved "https://registry.yarnpkg.com/hammerjs/-/hammerjs-2.0.8.tgz#04ef77862cff2bb79d30f7692095930222bf60f1"
 
-handlebars@^4.0.1, handlebars@^4.0.4:
+handlebars@^4.0.3, handlebars@^4.0.4:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.0.11.tgz#630a35dfe0294bc281edae6ffc5d329fc7982dcc"
   dependencies:
@@ -4865,6 +4915,12 @@ has@^1.0.0:
   dependencies:
     function-bind "^1.0.2"
 
+has@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  dependencies:
+    function-bind "^1.1.1"
+
 hash-base@^3.0.0:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/hash-base/-/hash-base-3.0.4.tgz#5fc8686847ecd73499403319a6b0a3f3f6ae4918"
@@ -5570,24 +5626,69 @@ isstream@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
 
-istanbul@^0.4.3:
-  version "0.4.5"
-  resolved "https://registry.yarnpkg.com/istanbul/-/istanbul-0.4.5.tgz#65c7d73d4c4da84d4f3ac310b918fb0b8033733b"
-  dependencies:
-    abbrev "1.0.x"
-    async "1.x"
-    escodegen "1.8.x"
-    esprima "2.7.x"
-    glob "^5.0.15"
-    handlebars "^4.0.1"
-    js-yaml "3.x"
-    mkdirp "0.5.x"
-    nopt "3.x"
-    once "1.x"
-    resolve "1.1.x"
-    supports-color "^3.1.0"
-    which "^1.1.1"
-    wordwrap "^1.0.0"
+istanbul-api@^1.1.14:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/istanbul-api/-/istanbul-api-1.3.1.tgz#4c3b05d18c0016d1022e079b98dc82c40f488954"
+  dependencies:
+    async "^2.1.4"
+    compare-versions "^3.1.0"
+    fileset "^2.0.2"
+    istanbul-lib-coverage "^1.2.0"
+    istanbul-lib-hook "^1.2.0"
+    istanbul-lib-instrument "^1.10.1"
+    istanbul-lib-report "^1.1.4"
+    istanbul-lib-source-maps "^1.2.4"
+    istanbul-reports "^1.3.0"
+    js-yaml "^3.7.0"
+    mkdirp "^0.5.1"
+    once "^1.4.0"
+
+istanbul-lib-coverage@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-coverage/-/istanbul-lib-coverage-1.2.0.tgz#f7d8f2e42b97e37fe796114cb0f9d68b5e3a4341"
+
+istanbul-lib-hook@^1.2.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-hook/-/istanbul-lib-hook-1.2.1.tgz#f614ec45287b2a8fc4f07f5660af787575601805"
+  dependencies:
+    append-transform "^1.0.0"
+
+istanbul-lib-instrument@^1.10.1:
+  version "1.10.1"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-instrument/-/istanbul-lib-instrument-1.10.1.tgz#724b4b6caceba8692d3f1f9d0727e279c401af7b"
+  dependencies:
+    babel-generator "^6.18.0"
+    babel-template "^6.16.0"
+    babel-traverse "^6.18.0"
+    babel-types "^6.18.0"
+    babylon "^6.18.0"
+    istanbul-lib-coverage "^1.2.0"
+    semver "^5.3.0"
+
+istanbul-lib-report@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-report/-/istanbul-lib-report-1.1.4.tgz#e886cdf505c4ebbd8e099e4396a90d0a28e2acb5"
+  dependencies:
+    istanbul-lib-coverage "^1.2.0"
+    mkdirp "^0.5.1"
+    path-parse "^1.0.5"
+    supports-color "^3.1.2"
+
+istanbul-lib-source-maps@^1.2.4:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/istanbul-lib-source-maps/-/istanbul-lib-source-maps-1.2.5.tgz#ffe6be4e7ab86d3603e4290d54990b14506fc9b1"
+  dependencies:
+    debug "^3.1.0"
+    istanbul-lib-coverage "^1.2.0"
+    mkdirp "^0.5.1"
+    rimraf "^2.6.1"
+    source-map "^0.5.3"
+
+istanbul-reports@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/istanbul-reports/-/istanbul-reports-1.3.0.tgz#2f322e81e1d9520767597dca3c20a0cce89a3554"
+  dependencies:
+    handlebars "^4.0.3"
 
 istextorbinary@2.1.0:
   version "2.1.0"
@@ -5620,16 +5721,16 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@3.x:
-  version "3.12.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
+js-yaml@^3.2.5, js-yaml@^3.2.7, js-yaml@^3.6.1, js-yaml@^3.9.1:
+  version "3.11.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
-js-yaml@^3.2.5, js-yaml@^3.2.7, js-yaml@^3.6.1, js-yaml@^3.9.1:
-  version "3.11.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
+js-yaml@^3.7.0:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
@@ -5841,6 +5942,15 @@ load-json-file@^1.0.0:
     pinkie-promise "^2.0.0"
     strip-bom "^2.0.0"
 
+load-json-file@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    strip-bom "^3.0.0"
+
 load-plugin@^2.0.0:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/load-plugin/-/load-plugin-2.2.2.tgz#ebc7599491ff33e5077719fbe051d5725a9f7a89"
@@ -6046,6 +6156,10 @@ lodash.clonedeep@^4.3.2, lodash.clonedeep@^4.4.1, lodash.clonedeep@~4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.clonedeep/-/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
 
+lodash.concat@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.concat/-/lodash.concat-4.5.0.tgz#b053ae02e4a8008582e7256b9d02bda6d0380395"
+
 lodash.debounce@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-3.1.1.tgz#812211c378a94cc29d5aa4e3346cf0bfce3a7df5"
@@ -6485,7 +6599,7 @@ micromatch@^2.1.5, micromatch@^2.3.7:
     parse-glob "^3.0.4"
     regex-cache "^0.4.2"
 
-micromatch@^3.0.4, micromatch@^3.1.4:
+micromatch@^3.0.4, micromatch@^3.1.4, micromatch@^3.1.8:
   version "3.1.10"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
   dependencies:
@@ -6837,7 +6951,7 @@ node-sass@^4.7.2:
     stdout-stream "^1.4.0"
     "true-case-path" "^1.0.2"
 
-"nopt@2 || 3", nopt@3.x, nopt@^3.0.6:
+"nopt@2 || 3", nopt@^3.0.6:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
   dependencies:
@@ -7130,7 +7244,7 @@ on-headers@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
 
-once@1.x, once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0, once@~1.4.0:
+once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0, once@~1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   dependencies:
@@ -7163,7 +7277,7 @@ optimist@^0.6.1:
     minimist "~0.0.1"
     wordwrap "~0.0.2"
 
-optionator@^0.8.1, optionator@^0.8.2:
+optionator@^0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
   dependencies:
@@ -7432,6 +7546,12 @@ path-type@^1.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+path-type@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
+  dependencies:
+    pify "^2.0.0"
+
 pbkdf2@^3.0.3:
   version "3.0.16"
   resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.16.tgz#7404208ec6b01b62d85bf83853a8064f8d9c2a5c"
@@ -7468,6 +7588,12 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
+pkg-dir@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/pkg-dir/-/pkg-dir-1.0.0.tgz#7a4b508a8d5bb2d629d447056ff4e9c9314cf3d4"
+  dependencies:
+    find-up "^1.0.0"
+
 pluralize@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
@@ -7800,6 +7926,13 @@ read-pkg-up@^1.0.1:
     find-up "^1.0.0"
     read-pkg "^1.0.0"
 
+read-pkg-up@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
+  dependencies:
+    find-up "^2.0.0"
+    read-pkg "^2.0.0"
+
 read-pkg@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
@@ -7808,6 +7941,14 @@ read-pkg@^1.0.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
+read-pkg@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
+  dependencies:
+    load-json-file "^2.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^2.0.0"
+
 read@1, read@~1.0.1, read@~1.0.7:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/read/-/read-1.0.7.tgz#b3da19bd052431a97671d44a42634adf710b40c4"
@@ -8180,7 +8321,7 @@ resolve-url@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
 
-resolve@1.1.7, resolve@1.1.x:
+resolve@1.1.7:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
 
@@ -8190,7 +8331,7 @@ resolve@1.5.0:
   dependencies:
     path-parse "^1.0.5"
 
-resolve@^1.1.3, resolve@^1.1.4, resolve@^1.1.6, resolve@^1.3.0, resolve@^1.3.3, resolve@^1.4.0, resolve@^1.5.0:
+resolve@^1.1.3, resolve@^1.1.4, resolve@^1.1.6, resolve@^1.3.0, resolve@^1.3.3, resolve@^1.4.0, resolve@^1.5.0, resolve@^1.6.0:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.7.1.tgz#aadd656374fd298aee895bc026b8297418677fd3"
   dependencies:
@@ -8268,7 +8409,7 @@ rsvp@^3.0.14, rsvp@^3.0.16, rsvp@^3.0.17, rsvp@^3.0.18, rsvp@^3.0.21, rsvp@^3.0.
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-3.6.2.tgz#2e96491599a96cde1b515d5674a8f7a91452926a"
 
-rsvp@^4.6.1, rsvp@^4.7.0, rsvp@^4.8.2:
+rsvp@^4.6.1, rsvp@^4.7.0, rsvp@^4.8.1, rsvp@^4.8.2:
   version "4.8.2"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-4.8.2.tgz#9d5647108735784eb13418cdddb56f75b919d722"
 
@@ -8669,11 +8810,7 @@ source-map@0.4.x, source-map@^0.4.2, source-map@^0.4.4:
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@0.5.6:
-  version "0.5.6"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
-
-source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.0, source-map@~0.5.1, source-map@~0.5.3:
+source-map@^0.5.3, source-map@^0.5.6, source-map@^0.5.7, source-map@~0.5.0, source-map@~0.5.1, source-map@~0.5.3:
   version "0.5.7"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
 
@@ -8687,12 +8824,6 @@ source-map@~0.1.x:
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@~0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
-  dependencies:
-    amdefine ">=0.0.4"
-
 sourcemap-validator@^1.0.5:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/sourcemap-validator/-/sourcemap-validator-1.1.0.tgz#00454547d1682186e1498a7208e022e8dfa8738f"
@@ -8876,10 +9007,6 @@ string-width@^1.0.0, string-width@^1.0.1, string-width@^1.0.2:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string.prototype.startswith@^0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/string.prototype.startswith/-/string.prototype.startswith-0.2.0.tgz#da68982e353a4e9ac4a43b450a2045d1c445ae7b"
-
 string_decoder@0.10, string_decoder@~0.10.0, string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -8959,7 +9086,7 @@ supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
 
-supports-color@^3.1.0:
+supports-color@^3.1.2:
   version "3.2.3"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.2.3.tgz#65ac0504b3954171d8a64946b2ae3cbb8a5f54f6"
   dependencies:
@@ -9061,6 +9188,16 @@ term-size@^1.2.0:
   dependencies:
     execa "^0.7.0"
 
+test-exclude@^4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-4.2.1.tgz#dfa222f03480bca69207ca728b37d74b45f724fa"
+  dependencies:
+    arrify "^1.0.1"
+    micromatch "^3.1.8"
+    object-assign "^4.1.0"
+    read-pkg-up "^1.0.1"
+    require-main-filename "^1.0.1"
+
 testem@^2.0.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/testem/-/testem-2.6.0.tgz#96c022c61bfd4d3b37738dc7483c1e678427d85b"
@@ -9730,7 +9867,7 @@ which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
 
-which@1, which@^1.1.1, which@^1.2.12, which@^1.2.14, which@^1.2.9, which@^1.3.0:
+which@1, which@^1.2.12, which@^1.2.14, which@^1.2.9, which@^1.3.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   dependencies:
@@ -9762,14 +9899,14 @@ wordwrap@0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
 
-wordwrap@^1.0.0, wordwrap@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
-
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
 
+wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+
 worker-farm@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.3.1.tgz#4333112bb49b17aa050b87895ca6b2cacf40e5ff"