diff --git a/{{cookiecutter.repo_name}}/package.json b/{{cookiecutter.repo_name}}/package.json
index b8705c5..8e97b09 100644
--- a/{{cookiecutter.repo_name}}/package.json
+++ b/{{cookiecutter.repo_name}}/package.json
@@ -6,20 +6,22 @@
   "private": true,
   "dependencies": {
     "jest-dom": "^2.0.4",
+    "lighthouse-ci": "^1.2.1",
     "react": "^16.5.2",
     "react-dom": "^16.5.2",
     "react-helmet": "^5.2.0",
     "react-router-dom": "^4.3.1",
     "react-scripts": "2.0.5",
     "react-snapshot": "^1.3.0",
+    "react-testing-library": "^5.2.0",
     "serve": "^10.0.2",
-    "styled-components": "^3.4.10",
-    "react-testing-library": "^5.2.0"
+    "styled-components": "^3.4.10"
   },
   "scripts": {
     "start": "react-scripts start",
     "build": "react-scripts build && react-snapshot",
     "test": "react-scripts test",
+    "a11y": "./src/tests/lighthouse/a11y.sh",
     "eject": "react-scripts eject",
     "serve": "cd build && serve && cd .."
   },
diff --git a/{{cookiecutter.repo_name}}/src/tests/lighthouse/a11y.sh b/{{cookiecutter.repo_name}}/src/tests/lighthouse/a11y.sh
new file mode 100755
index 0000000..7600bb3
--- /dev/null
+++ b/{{cookiecutter.repo_name}}/src/tests/lighthouse/a11y.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+# Add new URLs to this list as they are added to the app
+URLS=(/ /about)
+
+# The threshold can be configured and changed as desired (or extended to support other checks)
+for i in ${URLS[@]}; do
+    echo "RUNNING TESTS ON '${i}'"
+    lighthouse-ci http://localhost:5000${i} --accessibility=100
+done
+
+exit 0
diff --git a/{{cookiecutter.repo_name}}/yarn.lock b/{{cookiecutter.repo_name}}/yarn.lock
index a204362..97840ad 100644
--- a/{{cookiecutter.repo_name}}/yarn.lock
+++ b/{{cookiecutter.repo_name}}/yarn.lock
@@ -854,6 +854,31 @@
     "@svgr/core" "^2.4.1"
     loader-utils "^1.1.0"
 
+"@types/core-js@^0.9.41":
+  version "0.9.46"
+  resolved "https://registry.yarnpkg.com/@types/core-js/-/core-js-0.9.46.tgz#ea701ee34cbb6dfe6d100f1530319547c93c8d79"
+  integrity sha512-LooLR6XHes9V+kNYRz1Qm8w3atw9QMn7XeZUmIpUelllF9BdryeUKd/u0Wh5ErcjpWfG39NrToU9MF7ngsTFVw==
+
+"@types/mkdirp@^0.3.29":
+  version "0.3.29"
+  resolved "https://registry.yarnpkg.com/@types/mkdirp/-/mkdirp-0.3.29.tgz#7f2ad7ec55f914482fc9b1ec4bb1ae6028d46066"
+  integrity sha1-fyrX7FX5FEgvybHsS7GuYCjUYGY=
+
+"@types/node@*":
+  version "10.12.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.12.0.tgz#ea6dcbddbc5b584c83f06c60e82736d8fbb0c235"
+  integrity sha512-3TUHC3jsBAB7qVRGxT6lWyYo2v96BMmD2PTcl47H25Lu7UXtFH/2qqmKiVrnel6Ne//0TFYf6uvNX+HW2FRkLQ==
+
+"@types/node@^9.3.0":
+  version "9.6.35"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.35.tgz#197dd535c094362a7c95f0b78f07583d6681ed26"
+  integrity sha512-h5zvHS8wXHGa+Gcqs9K8vqCgOtqjr0+NqG/DDJmQIX1wpR9HivAfgV8bjcD3mGM4bPfQw5Aneb2Pn8355L83jA==
+
+"@types/rimraf@^0.0.28":
+  version "0.0.28"
+  resolved "https://registry.yarnpkg.com/@types/rimraf/-/rimraf-0.0.28.tgz#5562519bc7963caca8abf7f128cae3b594d41d06"
+  integrity sha1-VWJRm8eWPKyoq/fxKMrjtZTUHQY=
+
 "@types/tapable@1.0.2":
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-1.0.2.tgz#e13182e1b69871a422d7863e11a4a6f5b814a4bd"
@@ -1272,6 +1297,11 @@ array-filter@~0.0.0:
   resolved "https://registry.yarnpkg.com/array-filter/-/array-filter-0.0.1.tgz#7da8cf2e26628ed732803581fd21f67cacd2eeec"
   integrity sha1-fajPLiZijtcygDWB/SH2fKzS7uw=
 
+array-find-index@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
+  integrity sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=
+
 array-flatten@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
@@ -1429,6 +1459,11 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
+axe-core@3.0.0-beta.2:
+  version "3.0.0-beta.2"
+  resolved "https://registry.yarnpkg.com/axe-core/-/axe-core-3.0.0-beta.2.tgz#82a13d371268034352bba2bcb263c5625b3e4a09"
+  integrity sha512-JyMXnHDuzr6hei+mINWsR/iEyPBFSjpgF4/lUijO7QDGVKtTmdpDxc2+7X/xW+rPIwhcd72euJ2UunbRXF+1Eg==
+
 axobject-query@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/axobject-query/-/axobject-query-2.0.2.tgz#ea187abe5b9002b377f925d8bf7d1c561adf38f9"
@@ -1802,7 +1837,7 @@ boolbase@^1.0.0, boolbase@~1.0.0:
   resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
   integrity sha1-aN/1++YMUes3cl6p4+0xDcwed24=
 
-boxen@1.3.0:
+boxen@1.3.0, boxen@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/boxen/-/boxen-1.3.0.tgz#55c6c39a8ba58d9c61ad22cd877532deb665a20b"
   integrity sha512-TNPjfTr432qx7yOjQyaXm3dSR0MH9vXp7eT1BFSl/C51g+EFnOR9hTg1IreahGBmDNCehscshe45f+C1TBZbLw==
@@ -2075,6 +2110,20 @@ camel-case@3.0.x:
     no-case "^2.2.0"
     upper-case "^1.1.1"
 
+camelcase-keys@^4.0.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-4.2.0.tgz#a2aa5fb1af688758259c32c141426d78923b9b77"
+  integrity sha1-oqpfsa9oh1glnDLBQUJteJI7m3c=
+  dependencies:
+    camelcase "^4.1.0"
+    map-obj "^2.0.0"
+    quick-lru "^1.0.0"
+
+camelcase@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
+  integrity sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=
+
 camelcase@^4.0.0, camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
@@ -2107,6 +2156,11 @@ capture-exit@^1.2.0:
   dependencies:
     rsvp "^3.3.3"
 
+capture-stack-trace@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/capture-stack-trace/-/capture-stack-trace-1.0.1.tgz#a6c0bbe1f38f3aa0b92238ecb6ff42c344d4135d"
+  integrity sha512-mYQLZnx5Qt1JgB1WEiMCf2647plpGeQ2NMR/5L0HNZzGQo4fuSPnK+wjfPnKZV0aiJDgzmWqqkV/g7JD+DW0qw==
+
 case-sensitive-paths-webpack-plugin@2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/case-sensitive-paths-webpack-plugin/-/case-sensitive-paths-webpack-plugin-2.1.2.tgz#c899b52175763689224571dad778742e133f0192"
@@ -2117,7 +2171,7 @@ caseless@~0.12.0:
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
   integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
 
-chalk@2.4.1, chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.4.1:
+chalk@2.4.1, chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.1, chalk@^2.4.1:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
   integrity sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==
@@ -2137,11 +2191,21 @@ chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chardet@^0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+  integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
+
 chardet@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
   integrity sha512-mT8iDcrh03qDGRRmoA2hmBJnxpllMR+0/0qlzjqZES6NdiWDcZkCNAk4rPFZ9Q85r27unkiNNg8ZOiwZXBHwcA==
 
+charenc@~0.0.1:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/charenc/-/charenc-0.0.2.tgz#c0a1d2f3a7092e03774bfa83f14c0fc5790a8667"
+  integrity sha1-wKHS86cJLgN3S/qD8UwPxXkKhmc=
+
 check-types@^7.3.0:
   version "7.4.0"
   resolved "https://registry.yarnpkg.com/check-types/-/check-types-7.4.0.tgz#0378ec1b9616ec71f774931a3c6516fad8c152f4"
@@ -2172,6 +2236,30 @@ chownr@^1.0.1:
   resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.1.tgz#54726b8b8fff4df053c42187e801fb4412df1494"
   integrity sha512-j38EvO5+LHX84jlo6h4UzmOwi0UgW61WRyPtJz4qaadK5eY3BTS5TY/S1Stc3Uk2lIM6TPevAlULiEJwie860g==
 
+chrome-devtools-frontend@1.0.401423:
+  version "1.0.401423"
+  resolved "https://registry.yarnpkg.com/chrome-devtools-frontend/-/chrome-devtools-frontend-1.0.401423.tgz#32a89b8d04e378a494be3c8d63271703be1c04ea"
+  integrity sha1-MqibjQTjeKSUvjyNYycXA74cBOo=
+
+chrome-devtools-frontend@1.0.593291:
+  version "1.0.593291"
+  resolved "https://registry.yarnpkg.com/chrome-devtools-frontend/-/chrome-devtools-frontend-1.0.593291.tgz#72ed2e488e4ab8c5df9f35a5ce6bb128eb3c5e74"
+  integrity sha512-rZYanFVohRHjYdFdbvmna/9yzA+PMYfjBqXaLfF6SxE9ZnmfuMhItHGqPXrUTvuv1IuqaD1FX51WmTFwa2zfUA==
+
+chrome-launcher@^0.10.5:
+  version "0.10.5"
+  resolved "https://registry.yarnpkg.com/chrome-launcher/-/chrome-launcher-0.10.5.tgz#d0aa72c11f1653e6a60dfebea171522447470ef1"
+  integrity sha512-Gbzg8HlWhyuoVqflhiXwfFXhzNfNWvAkSWv2QR1Yl6mwsMo1oCLAVjp2tIySuS4lrZLEjzVx1fOy584yE76P4g==
+  dependencies:
+    "@types/core-js" "^0.9.41"
+    "@types/mkdirp" "^0.3.29"
+    "@types/node" "^9.3.0"
+    "@types/rimraf" "^0.0.28"
+    is-wsl "^1.1.0"
+    lighthouse-logger "^1.0.0"
+    mkdirp "0.5.1"
+    rimraf "^2.6.1"
+
 chrome-trace-event@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-1.0.0.tgz#45a91bd2c20c9411f0963b5aaeb9a1b95e09cc48"
@@ -2226,6 +2314,11 @@ cli-cursor@^2.1.0:
   dependencies:
     restore-cursor "^2.0.0"
 
+cli-spinners@^1.1.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-1.3.1.tgz#002c1990912d0d59580c93bd36c056de99e4259a"
+  integrity sha512-1QL4544moEsDVH9T/l6Cemov/37iv1RtoKf7NJ04A60+4MREXNfx/QvavbH6QoGdsD4N4Mwy49cmaINR/o2mdg==
+
 cli-width@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
@@ -2239,6 +2332,15 @@ clipboardy@1.2.3:
     arch "^2.1.0"
     execa "^0.8.0"
 
+cliui@^3.0.3:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  integrity sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wrap-ansi "^2.0.0"
+
 cliui@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.1.0.tgz#348422dbe82d800b3022eef4f6ac10bf2e4d1b49"
@@ -2269,6 +2371,11 @@ clone-deep@^2.0.1:
     kind-of "^6.0.0"
     shallow-clone "^1.0.0"
 
+clone@^1.0.2:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.4.tgz#da309cc263df15994c688ca902179ca3c7cd7c7e"
+  integrity sha1-2jCcwmPfFZlMaIypAheco8fNfH4=
+
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -2409,6 +2516,18 @@ concat-stream@^1.5.0:
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
+configstore@^3.0.0, configstore@^3.1.1:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/configstore/-/configstore-3.1.2.tgz#c6f25defaeef26df12dd33414b001fe81a543f8f"
+  integrity sha512-vtv5HtGjcYUgFrXc6Kx747B83MRRVS5R1VTEQoXvuP+kMI+if6uywV0nDGoiydJRy4yk7h9od5Og0kxx4zUXmw==
+  dependencies:
+    dot-prop "^4.1.0"
+    graceful-fs "^4.1.2"
+    make-dir "^1.0.0"
+    unique-string "^1.0.0"
+    write-file-atomic "^2.0.0"
+    xdg-basedir "^3.0.0"
+
 confusing-browser-globals@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/confusing-browser-globals/-/confusing-browser-globals-1.0.4.tgz#7d3ae232117abdf158f968c1ebeeab42ea980991"
@@ -2532,6 +2651,13 @@ create-ecdh@^4.0.0:
     bn.js "^4.1.0"
     elliptic "^6.0.0"
 
+create-error-class@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/create-error-class/-/create-error-class-3.0.2.tgz#06be7abef947a3f14a30fd610671d401bca8b7b6"
+  integrity sha1-Br56vvlHo/FKMP1hBnHUAbyot7Y=
+  dependencies:
+    capture-stack-trace "^1.0.0"
+
 create-hash@^1.1.0, create-hash@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/create-hash/-/create-hash-1.2.0.tgz#889078af11a63756bcfb59bd221996be3a9ef196"
@@ -2575,6 +2701,11 @@ cross-spawn@^5.0.1:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+crypt@~0.0.1:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/crypt/-/crypt-0.0.2.tgz#88d7ff7ec0dfb86f713dc87bbb42d044d3e6c41b"
+  integrity sha1-iNf/fsDfuG9xPch7u0LQRNPmxBs=
+
 crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
@@ -2592,6 +2723,11 @@ crypto-browserify@^3.11.0:
     randombytes "^2.0.0"
     randomfill "^1.0.3"
 
+crypto-random-string@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
+  integrity sha1-ojD2T1aDEOFJgAmUB5DsmVRbyn4=
+
 css-color-keywords@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/css-color-keywords/-/css-color-keywords-1.0.0.tgz#fea2616dc676b2962686b3af8dbdbe180b244e05"
@@ -2807,6 +2943,13 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0", cssom@^0.3.4:
   resolved "https://registry.yarnpkg.com/cssom/-/cssom-0.3.4.tgz#8cd52e8a3acfd68d3aed38ee0a640177d2f9d797"
   integrity sha512-+7prCSORpXNeR4/fUP3rL+TzqtiFfhMvTd7uEqMdgPvLPt4+uzFUeufx5RHjGTACCargg/DiEt/moMQmvnfkog==
 
+cssstyle@1.1.1, cssstyle@^1.0.0, cssstyle@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-1.1.1.tgz#18b038a9c44d65f7a8e428a653b9f6fe42faf5fb"
+  integrity sha512-364AI1l/M5TYcFH83JnOH/pSqgaNnKmYgKrm0didZMGKWjQB60dymwWy1rKUgL3J1ffdq9xVi2yGLHdSjjSNog==
+  dependencies:
+    cssom "0.3.x"
+
 "cssstyle@>= 0.2.37 < 0.3.0":
   version "0.2.37"
   resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-0.2.37.tgz#541097234cb2513c83ceed3acddc27ff27987d54"
@@ -2814,12 +2957,12 @@ cssom@0.3.x, "cssom@>= 0.3.2 < 0.4.0", cssom@^0.3.4:
   dependencies:
     cssom "0.3.x"
 
-cssstyle@^1.0.0, cssstyle@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/cssstyle/-/cssstyle-1.1.1.tgz#18b038a9c44d65f7a8e428a653b9f6fe42faf5fb"
-  integrity sha512-364AI1l/M5TYcFH83JnOH/pSqgaNnKmYgKrm0didZMGKWjQB60dymwWy1rKUgL3J1ffdq9xVi2yGLHdSjjSNog==
+currently-unhandled@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
+  integrity sha1-mI3zP+qxke95mmE2nddsF635V+o=
   dependencies:
-    cssom "0.3.x"
+    array-find-index "^1.0.1"
 
 cyclist@~0.2.2:
   version "0.2.2"
@@ -2873,7 +3016,15 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
-decamelize@^1.1.1:
+decamelize-keys@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
+  integrity sha1-0XGoeTMlKAfrPLYdwcFEXQeN8tk=
+  dependencies:
+    decamelize "^1.1.0"
+    map-obj "^1.0.0"
+
+decamelize@^1.1.0, decamelize@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
@@ -2920,6 +3071,13 @@ default-require-extensions@^1.0.0:
   dependencies:
     strip-bom "^2.0.0"
 
+defaults@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/defaults/-/defaults-1.0.3.tgz#c656051e9817d9ff08ed881477f3fe4019f3ef7d"
+  integrity sha1-xlYFHpgX2f8I7YgUd/P+QBnz730=
+  dependencies:
+    clone "^1.0.2"
+
 define-properties@^1.1.2:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
@@ -3032,6 +3190,14 @@ detect-port-alt@1.1.6:
     address "^1.0.1"
     debug "^2.6.0"
 
+devtools-timeline-model@1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/devtools-timeline-model/-/devtools-timeline-model-1.1.6.tgz#7be51a73b55d727b597bb30dd1ed2e8e210639a5"
+  integrity sha1-e+Uac7VdcntZe7MN0e0ujiEGOaU=
+  dependencies:
+    chrome-devtools-frontend "1.0.401423"
+    resolve "1.1.7"
+
 diff@^3.2.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
@@ -3157,7 +3323,7 @@ domutils@^1.7.0:
     dom-serializer "0"
     domelementtype "1"
 
-dot-prop@^4.1.1:
+dot-prop@^4.1.0, dot-prop@^4.1.1:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-4.2.0.tgz#1f19e0c2e1aa0e32797c49799f2837ac6af69c57"
   integrity sha512-tUMXrxlExSW6U2EXiiKGSBVdYgtV8qlHL+C10TsW4PURY/ic+eaysnSkwB4kA/mBlCyy/IKDJ+Lc3wbWeaXtuQ==
@@ -3174,6 +3340,11 @@ dotenv@6.0.0:
   resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-6.0.0.tgz#24e37c041741c5f4b25324958ebbc34bca965935"
   integrity sha512-FlWbnhgjtwD+uNLUGHbMykMOYQaTivdHEmYwAKFjn6GKe/CqY0fNae93ZHTd20snh9ZLr8mTzIL9m0APQ1pjQg==
 
+duplexer3@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
+  integrity sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI=
+
 duplexer@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
@@ -3484,7 +3655,7 @@ esprima@^3.1.3:
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
   integrity sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=
 
-esprima@^4.0.0:
+esprima@^4.0.0, esprima@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
   integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
@@ -3701,6 +3872,15 @@ extend@~3.0.2:
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
   integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
 
+external-editor@^2.0.4:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
+  integrity sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==
+  dependencies:
+    chardet "^0.4.0"
+    iconv-lite "^0.4.17"
+    tmp "^0.0.33"
+
 external-editor@^3.0.0:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-3.0.3.tgz#5866db29a97826dbe4bf3afd24070ead9ea43a27"
@@ -4173,6 +4353,13 @@ glob@^7.0.3, glob@^7.0.5, glob@^7.1.1, glob@^7.1.2:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+global-dirs@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/global-dirs/-/global-dirs-0.1.1.tgz#b319c0dd4607f353f3be9cca4c72fc148c49f445"
+  integrity sha1-sxnA3UYH81PzvpzKTHL8FIxJ9EU=
+  dependencies:
+    ini "^1.3.4"
+
 global-modules@1.0.0, global-modules@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-1.0.0.tgz#6d770f0eb523ac78164d72b5e71a8877265cc3ea"
@@ -4226,6 +4413,23 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+got@^6.7.1:
+  version "6.7.1"
+  resolved "https://registry.yarnpkg.com/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
+  integrity sha1-JAzQV4WpoY5WHcG0S0HHY+8ejbA=
+  dependencies:
+    create-error-class "^3.0.0"
+    duplexer3 "^0.1.4"
+    get-stream "^3.0.0"
+    is-redirect "^1.0.0"
+    is-retry-allowed "^1.0.0"
+    is-stream "^1.0.0"
+    lowercase-keys "^1.0.0"
+    safe-buffer "^5.0.1"
+    timed-out "^4.0.0"
+    unzip-response "^2.0.1"
+    url-parse-lax "^1.0.0"
+
 graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
@@ -4555,6 +4759,11 @@ http-errors@1.6.3, http-errors@~1.6.2, http-errors@~1.6.3:
     setprototypeof "1.1.0"
     statuses ">= 1.4.0 < 2"
 
+http-link-header@^0.8.0:
+  version "0.8.0"
+  resolved "https://registry.yarnpkg.com/http-link-header/-/http-link-header-0.8.0.tgz#a22b41a0c9b1e2d8fac1bf1b697c6bd532d5f5e4"
+  integrity sha1-oitBoMmx4tj6wb8baXxr1TLV9eQ=
+
 http-parser-js@>=0.4.0:
   version "0.4.13"
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.4.13.tgz#3bd6d6fde6e3172c9334c3b33b6c193d80fe1137"
@@ -4610,7 +4819,7 @@ iconv-lite@0.4.23:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@0.4.24, iconv-lite@^0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+iconv-lite@0.4.24, iconv-lite@^0.4.17, iconv-lite@^0.4.24, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -4658,6 +4867,11 @@ ignore@^4.0.6:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
   integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
+image-ssim@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/image-ssim/-/image-ssim-0.2.0.tgz#83b42c7a2e6e4b85505477fe6917f5dbc56420e5"
+  integrity sha1-g7Qsei5uS4VQVHf+aRf128VkIOU=
+
 import-cwd@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/import-cwd/-/import-cwd-2.1.0.tgz#aa6cf36e722761285cb371ec6519f53e2435b0a9"
@@ -4672,6 +4886,11 @@ import-from@^2.1.0:
   dependencies:
     resolve-from "^3.0.0"
 
+import-lazy@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/import-lazy/-/import-lazy-2.1.0.tgz#05698e3d45c88e8d7e9d92cb0584e77f096f3e43"
+  integrity sha1-BWmOPUXIjo1+nZLLBYTnfwlvPkM=
+
 import-local@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/import-local/-/import-local-1.0.0.tgz#5e4ffdc03f4fe6c009c6729beb29631c2f8227bc"
@@ -4750,6 +4969,26 @@ inquirer@6.2.0, inquirer@^6.1.0:
     strip-ansi "^4.0.0"
     through "^2.3.6"
 
+inquirer@^3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
+  integrity sha512-h+xtnyk4EwKvFWHrUYsWErEVR+igKtLdchu+o0Z1RL7VU/jVMFbYir2bp6bAj8efFNxWqHX0dIss6fJQ+/+qeQ==
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.0"
+    cli-cursor "^2.1.0"
+    cli-width "^2.0.0"
+    external-editor "^2.0.4"
+    figures "^2.0.0"
+    lodash "^4.3.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx-lite "^4.0.8"
+    rx-lite-aggregates "^4.0.8"
+    string-width "^2.1.0"
+    strip-ansi "^4.0.0"
+    through "^2.3.6"
+
 internal-ip@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/internal-ip/-/internal-ip-3.0.1.tgz#df5c99876e1d2eb2ea2d74f520e3f669a00ece27"
@@ -4758,6 +4997,18 @@ internal-ip@^3.0.1:
     default-gateway "^2.6.0"
     ipaddr.js "^1.5.2"
 
+intl-messageformat-parser@1.4.0, intl-messageformat-parser@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/intl-messageformat-parser/-/intl-messageformat-parser-1.4.0.tgz#b43d45a97468cadbe44331d74bb1e8dea44fc075"
+  integrity sha1-tD1FqXRoytvkQzHXS7Ho3qRPwHU=
+
+intl-messageformat@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/intl-messageformat/-/intl-messageformat-2.2.0.tgz#345bcd46de630b7683330c2e52177ff5eab484fc"
+  integrity sha1-NFvNRt5jC3aDMwwuUhd/9eq0hPw=
+  dependencies:
+    intl-messageformat-parser "1.4.0"
+
 invariant@^2.2.0, invariant@^2.2.1, invariant@^2.2.2, invariant@^2.2.4:
   version "2.2.4"
   resolved "https://registry.yarnpkg.com/invariant/-/invariant-2.2.4.tgz#610f3c92c9359ce1db616e538008d23ff35158e6"
@@ -4831,7 +5082,7 @@ is-binary-path@^1.0.0:
   dependencies:
     binary-extensions "^1.0.0"
 
-is-buffer@^1.0.2, is-buffer@^1.1.5:
+is-buffer@^1.0.2, is-buffer@^1.1.5, is-buffer@~1.1.1:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
   integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
@@ -4988,6 +5239,19 @@ is-glob@^4.0.0:
   dependencies:
     is-extglob "^2.1.1"
 
+is-installed-globally@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/is-installed-globally/-/is-installed-globally-0.1.0.tgz#0dfd98f5a9111716dd535dda6492f67bf3d25a80"
+  integrity sha1-Df2Y9akRFxbdU13aZJL2e/PSWoA=
+  dependencies:
+    global-dirs "^0.1.0"
+    is-path-inside "^1.0.0"
+
+is-npm@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-npm/-/is-npm-1.0.0.tgz#f2fb63a65e4905b406c86072765a1a4dc793b9f4"
+  integrity sha1-8vtjpl5JBbQGyGBydloaTceTufQ=
+
 is-number@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
@@ -5031,6 +5295,11 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
+is-plain-obj@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
+  integrity sha1-caUMhCnfync8kqOQpKA7OfzVHT4=
+
 is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
@@ -5053,6 +5322,11 @@ is-promise@^2.1.0:
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
   integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
 
+is-redirect@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-redirect/-/is-redirect-1.0.0.tgz#1d03dded53bd8db0f30c26e4f95d36fc7c87dc24"
+  integrity sha1-HQPd7VO9jbDzDCbk+V02/HyH3CQ=
+
 is-regex@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.0.4.tgz#5517489b547091b0930e095654ced25ee97e9491"
@@ -5070,12 +5344,17 @@ is-resolvable@^1.0.0, is-resolvable@^1.1.0:
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
   integrity sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==
 
+is-retry-allowed@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.1.0.tgz#11a060568b67339444033d0125a61a20d564fb34"
+  integrity sha1-EaBgVotnM5REAz0BJaYaINVk+zQ=
+
 is-root@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-root/-/is-root-2.0.0.tgz#838d1e82318144e5a6f77819d90207645acc7019"
   integrity sha512-F/pJIk8QD6OX5DNhRB7hWamLsUilmkDGho48KbgZ6xg/lmAZXHxzXQ91jzB3yRSw5kdQGGGc4yz8HYhTYIMWPg==
 
-is-stream@^1.0.1, is-stream@^1.1.0:
+is-stream@^1.0.0, is-stream@^1.0.1, is-stream@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
   integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
@@ -5575,11 +5854,21 @@ joi@^11.1.1:
     isemail "3.x.x"
     topo "2.x.x"
 
+jpeg-js@0.1.2, jpeg-js@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/jpeg-js/-/jpeg-js-0.1.2.tgz#135b992c0575c985cfa0f494a3227ed238583ece"
+  integrity sha1-E1uZLAV1yYXPoPSUoyJ+0jhYPs4=
+
 js-levenshtein@^1.1.3:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/js-levenshtein/-/js-levenshtein-1.1.4.tgz#3a56e3cbf589ca0081eb22cd9ba0b1290a16d26e"
   integrity sha512-PxfGzSs0ztShKrUYPIn5r0MtyAhYcCwmndozzpz8YObbPnD1jFxzlBGbRnX2mIu6Z13xN6+PTu05TQFnZFlzow==
 
+js-library-detector@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/js-library-detector/-/js-library-detector-5.1.0.tgz#1e2e88b119bb91e6581b28f4a90018ea1320de73"
+  integrity sha512-EIBFkV6/3PFoTp3V7BjuPTPuc8/2wjPMyI5A0t2eicZ/RhXHBYnWzb+E3Ai2H8kVW/N+a+pYMyWqVcV3CBCtzw==
+
 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"
@@ -5831,6 +6120,13 @@ last-call-webpack-plugin@^3.0.0:
     lodash "^4.17.5"
     webpack-sources "^1.1.0"
 
+latest-version@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/latest-version/-/latest-version-3.1.0.tgz#a205383fea322b33b5ae3b18abee0dc2f356ee15"
+  integrity sha1-ogU4P+oyKzO1rjsYq+4NwvNW7hU=
+  dependencies:
+    package-json "^4.0.0"
+
 lazy-cache@^0.2.3:
   version "0.2.7"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-0.2.7.tgz#7feddf2dcb6edb77d11ef1d117ab5ffdf0ab1b65"
@@ -5873,6 +6169,61 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lighthouse-ci@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/lighthouse-ci/-/lighthouse-ci-1.2.1.tgz#4db9ddefb2395846d2491bbd250443b046802f29"
+  integrity sha512-hy1WfHjN7Vr5disvqJyAqfXmAlkJDV+ODXo6iBylrB1hM3QY/J4Dv3V7SKL/gpGpfWcNADvfKqWiaxOcT2IHEA==
+  dependencies:
+    chrome-launcher "^0.10.5"
+    lighthouse "^3.1.1"
+    meow "^5.0.0"
+    mkdirp "^0.5.1"
+    ora "^3.0.0"
+    rimraf "^2.6.2"
+
+lighthouse-logger@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/lighthouse-logger/-/lighthouse-logger-1.1.0.tgz#1a355ce5d477f39b184ece1926a5f3627abd833d"
+  integrity sha512-l5/HppTtadQ9jyz6CoFPzEr/0zsr6tKL8e4wDBSlKDeaH5PZtI/Z/9YflLrds+uOhC3rk7xWCjIXqqhAjaQ+oA==
+  dependencies:
+    debug "^2.6.8"
+    marky "^1.2.0"
+
+lighthouse@^3.1.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/lighthouse/-/lighthouse-3.2.1.tgz#90681c9eb8b5dea41a2569e3d4bafdbd4292c97f"
+  integrity sha512-zoL0wc9gj8TJhhY1oHwO62E4bAj3LL+5YPCEgCU+sepextiynt11mXDjQcBXpTeDI195zIuk3CjEnppbq/kW5Q==
+  dependencies:
+    axe-core "3.0.0-beta.2"
+    chrome-devtools-frontend "1.0.593291"
+    chrome-launcher "^0.10.5"
+    configstore "^3.1.1"
+    cssstyle "1.1.1"
+    devtools-timeline-model "1.1.6"
+    esprima "^4.0.1"
+    http-link-header "^0.8.0"
+    inquirer "^3.3.0"
+    intl-messageformat "^2.2.0"
+    intl-messageformat-parser "^1.4.0"
+    jpeg-js "0.1.2"
+    js-library-detector "^5.1.0"
+    lighthouse-logger "^1.0.0"
+    lodash.isequal "^4.5.0"
+    lookup-closest-locale "6.0.4"
+    metaviewport-parser "0.2.0"
+    mkdirp "0.5.1"
+    opn "4.0.2"
+    parse-cache-control "1.0.1"
+    raven "^2.2.1"
+    rimraf "^2.6.1"
+    robots-parser "^2.0.1"
+    semver "^5.3.0"
+    speedline-core "1.4.2"
+    update-notifier "^2.1.0"
+    ws "3.3.2"
+    yargs "3.32.0"
+    yargs-parser "7.0.0"
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -5894,6 +6245,16 @@ load-json-file@^2.0.0:
     pify "^2.0.0"
     strip-bom "^3.0.0"
 
+load-json-file@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-4.0.0.tgz#2f5f45ab91e33216234fd53adab668eb4ec0993b"
+  integrity sha1-L19Fq5HjMhYjT9U62rZo607AmTs=
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^4.0.0"
+    pify "^3.0.0"
+    strip-bom "^3.0.0"
+
 loader-fs-cache@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/loader-fs-cache/-/loader-fs-cache-1.0.1.tgz#56e0bf08bd9708b26a765b68509840c8dec9fdbc"
@@ -5947,6 +6308,11 @@ lodash.debounce@^4.0.8:
   resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
   integrity sha1-gteb/zCmfEAF/9XiUVMArZyk168=
 
+lodash.isequal@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.isequal/-/lodash.isequal-4.5.0.tgz#415c4478f2bcc30120c22ce10ed3226f7d3e18e0"
+  integrity sha1-QVxEePK8wwEgwizhDtMib30+GOA=
+
 lodash.memoize@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
@@ -5982,16 +6348,28 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-"lodash@>=3.5 <5", lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0:
+"lodash@>=3.5 <5", lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.3.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
+log-symbols@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
+  integrity sha512-VeIAFslyIerEJLXHziedo2basKbMKtTw3vfn5IzG0XTjhAVEJyNHnL2p7vc+wBDSdQuUpNw3M2u6xb9QsAY5Eg==
+  dependencies:
+    chalk "^2.0.1"
+
 loglevel@^1.4.1:
   version "1.6.1"
   resolved "https://registry.yarnpkg.com/loglevel/-/loglevel-1.6.1.tgz#e0fc95133b6ef276cdc8887cdaf24aa6f156f8fa"
   integrity sha1-4PyVEztu8nbNyIh82vJKpvFW+Po=
 
+lookup-closest-locale@6.0.4:
+  version "6.0.4"
+  resolved "https://registry.yarnpkg.com/lookup-closest-locale/-/lookup-closest-locale-6.0.4.tgz#1279fed7546a601647bbc980f64423ee990a8590"
+  integrity sha512-bWoFbSGe6f1GvMGzj17LrwMX4FhDXDwZyH04ySVCPbtOJADcSRguZNKewoJ3Ful/MOxD/wRHvFPadk/kYZUbuQ==
+
 loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3.1:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
@@ -5999,11 +6377,24 @@ loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.2.0, loose-envify@^1.3
   dependencies:
     js-tokens "^3.0.0 || ^4.0.0"
 
+loud-rejection@^1.0.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
+  integrity sha1-W0b4AUft7leIcPCG0Eghz5mOVR8=
+  dependencies:
+    currently-unhandled "^0.4.1"
+    signal-exit "^3.0.0"
+
 lower-case@^1.1.1:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
   integrity sha1-miyr0bno4K6ZOkv31YdcOcQujqw=
 
+lowercase-keys@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.1.tgz#6f9e30b47084d971a7c820ff15a6c5167b74c26f"
+  integrity sha512-G2Lj61tXDnVFFOi8VZds+SoQjtQC3dgokKdDG2mTm1tx4m50NUHBOZSBwQQHyy0V12A0JTG4icfZQH+xPyh8VA==
+
 lru-cache@^4.0.1, lru-cache@^4.1.1, lru-cache@^4.1.3:
   version "4.1.3"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
@@ -6043,6 +6434,16 @@ map-cache@^0.2.2:
   resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
   integrity sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8=
 
+map-obj@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-1.0.1.tgz#d933ceb9205d82bdcf4886f6742bdc2b4dea146d"
+  integrity sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=
+
+map-obj@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-2.0.0.tgz#a65cd29087a92598b8791257a523e021222ac1f9"
+  integrity sha1-plzSkIepJZi4eRJXpSPgISIqwfk=
+
 map-visit@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/map-visit/-/map-visit-1.0.0.tgz#ecdca8f13144e660f1b5bd41f12f3479d98dfb8f"
@@ -6050,6 +6451,11 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
+marky@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/marky/-/marky-1.2.0.tgz#9617ed647bbbea8f45d19526da33dec70606df42"
+  integrity sha1-lhftZHu76o9F0ZUm2jPexwYG30I=
+
 math-random@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.1.tgz#8b3aac588b8a66e4975e3cdea67f7bb329601fac"
@@ -6064,6 +6470,15 @@ md5.js@^1.3.4:
     inherits "^2.0.1"
     safe-buffer "^5.1.2"
 
+md5@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/md5/-/md5-2.2.1.tgz#53ab38d5fe3c8891ba465329ea23fac0540126f9"
+  integrity sha1-U6s41f48iJG6RlMp6iP6wFQBJvk=
+  dependencies:
+    charenc "~0.0.1"
+    crypt "~0.0.1"
+    is-buffer "~1.1.1"
+
 mdn-data@~1.1.0:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-1.1.4.tgz#50b5d4ffc4575276573c4eedb8780812a8419f01"
@@ -6098,6 +6513,21 @@ memory-fs@^0.4.0, memory-fs@~0.4.1:
     errno "^0.1.3"
     readable-stream "^2.0.1"
 
+meow@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/meow/-/meow-5.0.0.tgz#dfc73d63a9afc714a5e371760eb5c88b91078aa4"
+  integrity sha512-CbTqYU17ABaLefO8vCU153ZZlprKYWDljcndKKDCFcYQITzWCXZAVk4QMFZPgvzrnUQ3uItnIE/LoUOwrT15Ig==
+  dependencies:
+    camelcase-keys "^4.0.0"
+    decamelize-keys "^1.0.0"
+    loud-rejection "^1.0.0"
+    minimist-options "^3.0.1"
+    normalize-package-data "^2.3.4"
+    read-pkg-up "^3.0.0"
+    redent "^2.0.0"
+    trim-newlines "^2.0.0"
+    yargs-parser "^10.0.0"
+
 merge-deep@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/merge-deep/-/merge-deep-3.0.2.tgz#f39fa100a4f1bd34ff29f7d2bf4508fbb8d83ad2"
@@ -6124,6 +6554,11 @@ merge@^1.2.0:
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
   integrity sha1-dTHjnUlJwoGma4xabgJl6LBYlNo=
 
+metaviewport-parser@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/metaviewport-parser/-/metaviewport-parser-0.2.0.tgz#535c3ce1ccf6223a5025fddc6a1c36505f7e7db1"
+  integrity sha1-U1w84cz2IjpQJf3cahw2UF9+fbE=
+
 methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
@@ -6240,6 +6675,14 @@ minimatch@3.0.4, minimatch@^3.0.3, minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
+minimist-options@^3.0.1:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/minimist-options/-/minimist-options-3.0.2.tgz#fba4c8191339e13ecf4d61beb03f070103f3d954"
+  integrity sha512-FyBrT/d0d4+uiZRbqznPXqw3IpZZG3gl3wKWiX784FycUKVwBt0uLBFkQrtE4tZOrgo78nZp2jnKz3L65T5LdQ==
+  dependencies:
+    arrify "^1.0.1"
+    is-plain-obj "^1.1.0"
+
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
@@ -6511,7 +6954,7 @@ nopt@^4.0.1:
     abbrev "1"
     osenv "^0.1.4"
 
-normalize-package-data@^2.3.2:
+normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
   integrity sha512-9jjUFbTPfEy3R/ad/2oNbKtW9Hgovl5O1FvFWKkKblNXoN/Oou6+9+KKohPK13Yc3/TyunyWhJp6gvRNR/PPAw==
@@ -6705,6 +7148,14 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
+opn@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
+  integrity sha1-erwi5kTf9jsKltWrfyeQwPAavJU=
+  dependencies:
+    object-assign "^4.0.1"
+    pinkie-promise "^2.0.0"
+
 opn@5.4.0, opn@^5.1.0:
   version "5.4.0"
   resolved "https://registry.yarnpkg.com/opn/-/opn-5.4.0.tgz#cb545e7aab78562beb11aa3bfabc7042e1761035"
@@ -6740,6 +7191,18 @@ optionator@^0.8.1, optionator@^0.8.2:
     type-check "~0.3.2"
     wordwrap "~1.0.0"
 
+ora@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ora/-/ora-3.0.0.tgz#8179e3525b9aafd99242d63cc206fd64732741d0"
+  integrity sha512-LBS97LFe2RV6GJmXBi6OKcETKyklHNMV0xw7BtsVn2MlsgsydyZetSCbCANr+PFLmDyv4KV88nn0eCKza665Mg==
+  dependencies:
+    chalk "^2.3.1"
+    cli-cursor "^2.1.0"
+    cli-spinners "^1.1.0"
+    log-symbols "^2.2.0"
+    strip-ansi "^4.0.0"
+    wcwidth "^1.0.1"
+
 original@>=0.0.5:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/original/-/original-1.0.2.tgz#e442a61cffe1c5fd20a65f3261c26663b303f25f"
@@ -6757,6 +7220,13 @@ os-homedir@^1.0.0:
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
   integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
+os-locale@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+  integrity sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=
+  dependencies:
+    lcid "^1.0.0"
+
 os-locale@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
@@ -6846,6 +7316,16 @@ p-try@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
   integrity sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ==
 
+package-json@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/package-json/-/package-json-4.0.1.tgz#8869a0401253661c4c4ca3da6c2121ed555f5eed"
+  integrity sha1-iGmgQBJTZhxMTKPabCEh7VVfXu0=
+  dependencies:
+    got "^6.7.1"
+    registry-auth-token "^3.0.1"
+    registry-url "^3.0.3"
+    semver "^5.1.0"
+
 pako@~1.0.5:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
@@ -6878,6 +7358,11 @@ parse-asn1@^5.0.0:
     evp_bytestokey "^1.0.0"
     pbkdf2 "^3.0.3"
 
+parse-cache-control@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/parse-cache-control/-/parse-cache-control-1.0.1.tgz#8eeab3e54fa56920fe16ba38f77fa21aacc2d74e"
+  integrity sha1-juqz5U+laSD+Fro493+iGqzC104=
+
 parse-glob@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
@@ -7008,6 +7493,13 @@ path-type@^2.0.0:
   dependencies:
     pify "^2.0.0"
 
+path-type@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-3.0.0.tgz#cef31dc8e0a1a3bb0d105c0cd97cf3bf47f4e36f"
+  integrity sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==
+  dependencies:
+    pify "^3.0.0"
+
 pbkdf2@^3.0.3:
   version "3.0.17"
   resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.17.tgz#976c206530617b14ebb32114239f7b09336e93a6"
@@ -7715,6 +8207,11 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
+prepend-http@^1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
+  integrity sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw=
+
 preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
@@ -7901,6 +8398,11 @@ querystringify@^2.0.0:
   resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.0.tgz#7ded8dfbf7879dcc60d0a644ac6754b283ad17ef"
   integrity sha512-sluvZZ1YiTLD5jsqZcDmFyV2EwToyXZBfpoVOmktMmW+VEnhgakFHnasVph65fOjGPTWN0Nw3+XQaSeMayr0kg==
 
+quick-lru@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/quick-lru/-/quick-lru-1.1.0.tgz#4360b17c61136ad38078397ff11416e186dcfbb8"
+  integrity sha1-Q2CxfGETatOAeDl/8RQW4Ybc+7g=
+
 raf@3.4.0:
   version "3.4.0"
   resolved "https://registry.yarnpkg.com/raf/-/raf-3.4.0.tgz#a28876881b4bc2ca9117d4138163ddb80f781575"
@@ -7937,6 +8439,17 @@ range-parser@1.2.0, range-parser@^1.0.3, range-parser@~1.2.0:
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
   integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
+raven@^2.2.1:
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/raven/-/raven-2.6.4.tgz#458d4a380c8fbb59e0150c655625aaf60c167ea3"
+  integrity sha512-6PQdfC4+DQSFncowthLf+B6Hr0JpPsFBgTVYTAOq7tCmx/kR4SXbeawtPch20+3QfUcQDoJBLjWW1ybvZ4kXTw==
+  dependencies:
+    cookie "0.3.1"
+    md5 "^2.2.1"
+    stack-trace "0.0.10"
+    timed-out "4.0.1"
+    uuid "3.3.2"
+
 raw-body@2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
@@ -8160,6 +8673,14 @@ read-pkg-up@^2.0.0:
     find-up "^2.0.0"
     read-pkg "^2.0.0"
 
+read-pkg-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-3.0.0.tgz#3ed496685dba0f8fe118d0691dc51f4a1ff96f07"
+  integrity sha1-PtSWaF26D4/hGNBpHcUfSh/5bwc=
+  dependencies:
+    find-up "^2.0.0"
+    read-pkg "^3.0.0"
+
 read-pkg@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
@@ -8178,6 +8699,15 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
+read-pkg@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-3.0.0.tgz#9cbc686978fee65d16c00e2b19c237fcf6e38389"
+  integrity sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=
+  dependencies:
+    load-json-file "^4.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^3.0.0"
+
 "readable-stream@1 || 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@^2.2.9, readable-stream@^2.3.3, readable-stream@^2.3.6:
   version "2.3.6"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
@@ -8302,7 +8832,7 @@ regexpu-core@^4.1.3, regexpu-core@^4.2.0:
     unicode-match-property-ecmascript "^1.0.4"
     unicode-match-property-value-ecmascript "^1.0.2"
 
-registry-auth-token@3.3.2:
+registry-auth-token@3.3.2, registry-auth-token@^3.0.1:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/registry-auth-token/-/registry-auth-token-3.3.2.tgz#851fd49038eecb586911115af845260eec983f20"
   integrity sha512-JL39c60XlzCVgNrO+qq68FoNb56w/m7JYvGR2jT5iR1xBrUA3Mfx5Twk5rqTThPmQKMWydGmq8oFtDlxfrmxnQ==
@@ -8310,7 +8840,7 @@ registry-auth-token@3.3.2:
     rc "^1.1.6"
     safe-buffer "^5.0.1"
 
-registry-url@3.1.0:
+registry-url@3.1.0, registry-url@^3.0.3:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/registry-url/-/registry-url-3.1.0.tgz#3d4ef870f73dde1d77f0cf9a381432444e174942"
   integrity sha1-PU74cPc93h138M+aOBQyRE4XSUI=
@@ -8534,6 +9064,11 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
+robots-parser@^2.0.1:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/robots-parser/-/robots-parser-2.1.0.tgz#d16b78ce34e861ab6afbbf0aac65974dbe01566e"
+  integrity sha512-k07MeDS1Tl1zjoYs5bHfUbgQ0MfaeTOepDcjZFxdYXd84p6IeLDQyUwlMk2AZ9c2yExA30I3ayWhmqz9tg0DzQ==
+
 rsvp@^3.3.3:
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-3.6.2.tgz#2e96491599a96cde1b515d5674a8f7a91452926a"
@@ -8553,6 +9088,18 @@ run-queue@^1.0.0, run-queue@^1.0.3:
   dependencies:
     aproba "^1.1.1"
 
+rx-lite-aggregates@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  integrity sha1-dTuHqJoRyVRnxKwWJsTvxOBcZ74=
+  dependencies:
+    rx-lite "*"
+
+rx-lite@*, rx-lite@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
+  integrity sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=
+
 rxjs@^6.1.0:
   version "6.3.3"
   resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.3.3.tgz#3c6a7fa420e844a81390fb1158a9ec614f4bad55"
@@ -8660,7 +9207,14 @@ selfsigned@^1.9.1:
   dependencies:
     node-forge "0.7.5"
 
-"semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.5.1:
+semver-diff@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
+  integrity sha1-S7uEN8jTfksM8aaP1ybsbWRdbTY=
+  dependencies:
+    semver "^5.0.3"
+
+"semver@2 || 3 || 4 || 5", semver@^5.0.3, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0, semver@^5.5.1:
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
@@ -9011,6 +9565,15 @@ spdy@^3.4.1:
     select-hose "^2.0.0"
     spdy-transport "^2.0.18"
 
+speedline-core@1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/speedline-core/-/speedline-core-1.4.2.tgz#bb061444a218d67b4cd52f63a262386197b90c8a"
+  integrity sha512-9/5CApkKKl6bS6jJ2D0DQllwz/1xq3cyJCR6DLgAQnkj5djCuq8NbflEdD2TI01p8qzS9qaKjzxM9cHT11ezmg==
+  dependencies:
+    "@types/node" "*"
+    image-ssim "^0.2.0"
+    jpeg-js "^0.1.2"
+
 split-string@^3.0.1, split-string@^3.0.2:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/split-string/-/split-string-3.1.0.tgz#7cb09dda3a86585705c64b39a6466038682e8fe2"
@@ -9057,6 +9620,11 @@ stable@~0.1.6:
   resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
   integrity sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w==
 
+stack-trace@0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/stack-trace/-/stack-trace-0.0.10.tgz#547c70b347e8d32b4e108ea1a2a159e5fdde19c0"
+  integrity sha1-VHxws0fo0ytOEI6hoqFZ5f3eGcA=
+
 stack-utils@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.1.tgz#d4f33ab54e8e38778b0ca5cfd3b3afb12db68620"
@@ -9397,6 +9965,11 @@ thunky@^1.0.2:
   resolved "https://registry.yarnpkg.com/thunky/-/thunky-1.0.3.tgz#f5df732453407b09191dae73e2a8cc73f381a826"
   integrity sha512-YwT8pjmNcAXBZqrubu22P4FYsh2D4dxRmnWBOL8Jk8bUcRUtc5326kx32tuTmFDAZtLOGEVNl8POAR8j896Iow==
 
+timed-out@4.0.1, timed-out@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
+  integrity sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=
+
 timers-browserify@^2.0.4:
   version "2.0.10"
   resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.10.tgz#1d28e3d2aadf1d5a5996c4e9f95601cd053480ae"
@@ -9488,6 +10061,11 @@ tr46@~0.0.3:
   resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
   integrity sha1-gYT9NH2snNwYWZLzpmIuFLnZq2o=
 
+trim-newlines@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-2.0.0.tgz#b403d0b91be50c331dfc4b82eeceb22c3de16d20"
+  integrity sha1-tAPQuRvlDDMd/EuC7s6yLD3hbSA=
+
 trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
@@ -9575,6 +10153,11 @@ uglifyjs-webpack-plugin@^1.2.4:
     webpack-sources "^1.1.0"
     worker-farm "^1.5.2"
 
+ultron@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
+  integrity sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og==
+
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz#2619800c4c825800efdd8343af7dd9933cbe2818"
@@ -9632,6 +10215,13 @@ unique-slug@^2.0.0:
   dependencies:
     imurmurhash "^0.1.4"
 
+unique-string@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unique-string/-/unique-string-1.0.0.tgz#9e1057cca851abb93398f8b33ae187b99caec11a"
+  integrity sha1-nhBXzKhRq7kzmPizOuGHuZyuwRo=
+  dependencies:
+    crypto-random-string "^1.0.0"
+
 universalify@^0.1.0:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
@@ -9655,6 +10245,11 @@ unset-value@^1.0.0:
     has-value "^0.3.1"
     isobject "^3.0.0"
 
+unzip-response@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/unzip-response/-/unzip-response-2.0.1.tgz#d2f0f737d16b0615e72a6935ed04214572d56f97"
+  integrity sha1-0vD3N9FrBhXnKmk17QQhRXLVb5c=
+
 upath@^1.0.5:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/upath/-/upath-1.1.0.tgz#35256597e46a581db4793d0ce47fa9aebfc9fabd"
@@ -9668,6 +10263,22 @@ update-check@1.5.2:
     registry-auth-token "3.3.2"
     registry-url "3.1.0"
 
+update-notifier@^2.1.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-2.5.0.tgz#d0744593e13f161e406acb1d9408b72cad08aff6"
+  integrity sha512-gwMdhgJHGuj/+wHJJs9e6PcCszpxR1b236igrOkUofGhqJuG+amlIKwApH1IW1WWl7ovZxsX49lMBWLxSdm5Dw==
+  dependencies:
+    boxen "^1.2.1"
+    chalk "^2.0.1"
+    configstore "^3.0.0"
+    import-lazy "^2.1.0"
+    is-ci "^1.0.10"
+    is-installed-globally "^0.1.0"
+    is-npm "^1.0.0"
+    latest-version "^3.0.0"
+    semver-diff "^2.0.0"
+    xdg-basedir "^3.0.0"
+
 upper-case@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/upper-case/-/upper-case-1.1.3.tgz#f6b4501c2ec4cdd26ba78be7222961de77621598"
@@ -9694,6 +10305,13 @@ url-loader@1.1.1:
     mime "^2.0.3"
     schema-utils "^1.0.0"
 
+url-parse-lax@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/url-parse-lax/-/url-parse-lax-1.0.0.tgz#7af8f303645e9bd79a272e7a14ac68bc0609da73"
+  integrity sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=
+  dependencies:
+    prepend-http "^1.0.1"
+
 url-parse@^1.1.8, url-parse@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.3.tgz#bfaee455c889023219d757e045fa6a684ec36c15"
@@ -9752,7 +10370,7 @@ utils-merge@1.0.1:
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
-uuid@^3.0.1, uuid@^3.3.2:
+uuid@3.3.2, uuid@^3.0.1, uuid@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
   integrity sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==
@@ -9853,6 +10471,13 @@ wbuf@^1.1.0, wbuf@^1.7.2:
   dependencies:
     minimalistic-assert "^1.0.0"
 
+wcwidth@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/wcwidth/-/wcwidth-1.0.1.tgz#f0b0dcf915bc5ff1528afadb2c0e17b532da2fe8"
+  integrity sha1-8LDc+RW8X/FSivrbLA4XtTLaL+g=
+  dependencies:
+    defaults "^1.0.3"
+
 webidl-conversions@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
@@ -10044,6 +10669,11 @@ widest-line@^2.0.0:
   dependencies:
     string-width "^2.1.1"
 
+window-size@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"
+  integrity sha1-+OGqHuWlPsW/FR/6CXQqatdpeHY=
+
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
@@ -10201,7 +10831,7 @@ wrappy@1:
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
   integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
 
-write-file-atomic@^2.1.0:
+write-file-atomic@^2.0.0, write-file-atomic@^2.1.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/write-file-atomic/-/write-file-atomic-2.3.0.tgz#1ff61575c2e2a4e8e510d6fa4e243cce183999ab"
   integrity sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==
@@ -10217,6 +10847,15 @@ write@^0.2.1:
   dependencies:
     mkdirp "^0.5.1"
 
+ws@3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.2.tgz#96c1d08b3fefda1d5c1e33700d3bfaa9be2d5608"
+  integrity sha512-t+WGpsNxhMR4v6EClXS8r8km5ZljKJzyGhJf7goJz9k5Ye3+b5Bvno5rjqPuIBn5mnn5GBb7o8IrIWHxX1qOLQ==
+  dependencies:
+    async-limiter "~1.0.0"
+    safe-buffer "~5.1.0"
+    ultron "~1.1.0"
+
 ws@^5.2.0:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
@@ -10231,6 +10870,11 @@ ws@^6.1.0:
   dependencies:
     async-limiter "~1.0.0"
 
+xdg-basedir@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-3.0.0.tgz#496b2cc109eca8dbacfe2dc72b603c17c5870ad4"
+  integrity sha1-SWsswQnsqNus/i3HK2A8F8WHCtQ=
+
 xml-name-validator@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-2.0.1.tgz#4d8b8f1eccd3419aa362061becef515e1e559635"
@@ -10256,7 +10900,7 @@ xtend@^4.0.0, xtend@~4.0.1:
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
   integrity sha1-pcbVMr5lbiPbgg77lDofBJmNY68=
 
-y18n@^3.2.1:
+y18n@^3.2.0, y18n@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
   integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
@@ -10276,7 +10920,14 @@ yallist@^3.0.0, yallist@^3.0.2:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.2.tgz#8452b4bb7e83c7c188d8041c1a837c773d6d8bb9"
   integrity sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k=
 
-yargs-parser@^10.1.0:
+yargs-parser@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-7.0.0.tgz#8d0ac42f16ea55debd332caf4c4038b3e3f5dfd9"
+  integrity sha1-jQrELxbqVd69MyyvTEA4s+P139k=
+  dependencies:
+    camelcase "^4.1.0"
+
+yargs-parser@^10.0.0, yargs-parser@^10.1.0:
   version "10.1.0"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-10.1.0.tgz#7202265b89f7e9e9f2e5765e0fe735a905edbaa8"
   integrity sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==
@@ -10308,6 +10959,19 @@ yargs@12.0.2:
     y18n "^3.2.1 || ^4.0.0"
     yargs-parser "^10.1.0"
 
+yargs@3.32.0:
+  version "3.32.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"
+  integrity sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=
+  dependencies:
+    camelcase "^2.0.1"
+    cliui "^3.0.3"
+    decamelize "^1.1.1"
+    os-locale "^1.4.0"
+    string-width "^1.0.1"
+    window-size "^0.1.4"
+    y18n "^3.2.0"
+
 yargs@^11.0.0:
   version "11.1.0"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-11.1.0.tgz#90b869934ed6e871115ea2ff58b03f4724ed2d77"