diff --git a/package.json b/package.json
index b26c603c..8205b0f8 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "babel-code-frame": "^6.11.0",
     "css-selector-tokenizer": "^0.7.0",
-    "cssnano": ">=2.6.1 <4",
+    "cssnano": ">=4.0.0",
     "icss-utils": "^2.1.0",
     "loader-utils": "^1.0.2",
     "lodash.camelcase": "^4.3.0",
diff --git a/yarn.lock b/yarn.lock
index b5ab0cdc..6e8c21f3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,11 @@
 # yarn lockfile v1
 
 
+"@types/q@^1.5.1":
+  version "1.5.4"
+  resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.4.tgz#15925414e0ad2cd765bfef58842f7e26a7accb24"
+  integrity sha512-1HcDas8SEj4z1Wc696tH56G8OlRaH/sqZOynNNB+HF0WOeXPaxTtbYzJY2oEfiUxjSKjhCKr+MvR7dCHcEelug==
+
 JSONStream@^1.0.4:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.1.tgz#707f761e01dae9e16f1bcf93703b78c70966579a"
@@ -46,9 +51,10 @@ align-text@^0.1.1, align-text@^0.1.3:
     longest "^1.0.1"
     repeat-string "^1.5.2"
 
-alphanum-sort@^1.0.1, alphanum-sort@^1.0.2:
+alphanum-sort@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/alphanum-sort/-/alphanum-sort-1.0.2.tgz#97a1119649b211ad33691d9f9f486a8ec9fbe0a3"
+  integrity sha1-l6ERlkmyEa0zaR2fn0hqjsn74KM=
 
 amdefine@>=0.0.4:
   version "1.0.1"
@@ -66,6 +72,13 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
+ansi-styles@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
+  dependencies:
+    color-convert "^1.9.0"
+
 argparse@^1.0.7:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.9.tgz#73d83bc263f86e97f8cc4f6bae1b0e90a7d22c86"
@@ -118,17 +131,6 @@ asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
 
-autoprefixer@^6.3.1:
-  version "6.7.6"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-6.7.6.tgz#00f05656c7ef73de9d2fd9b4668f6ef6905a855a"
-  dependencies:
-    browserslist "^1.7.5"
-    caniuse-db "^1.0.30000628"
-    normalize-range "^0.1.2"
-    num2fraction "^1.2.2"
-    postcss "^5.2.15"
-    postcss-value-parser "^3.2.3"
-
 aws-sign2@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.6.0.tgz#14342dd38dbcc94d0e5b87d763cd63612c0e794f"
@@ -145,7 +147,7 @@ babel-code-frame@^6.11.0, babel-code-frame@^6.16.0:
     esutils "^2.0.2"
     js-tokens "^3.0.0"
 
-balanced-match@^0.4.1, balanced-match@^0.4.2:
+balanced-match@^0.4.1:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
 
@@ -159,6 +161,11 @@ big.js@^3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.1.3.tgz#4cada2193652eb3ca9ec8e55c9015669c9806978"
 
+boolbase@^1.0.0, boolbase@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
+  integrity sha1-aN/1++YMUes3cl6p4+0xDcwed24=
+
 boom@2.x.x:
   version "2.10.1"
   resolved "https://registry.yarnpkg.com/boom/-/boom-2.10.1.tgz#39c8918ceff5799f83f9492a848f625add0c766f"
@@ -176,12 +183,16 @@ browser-stdout@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
 
-browserslist@^1.0.1, browserslist@^1.5.2, browserslist@^1.7.5:
-  version "1.7.6"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-1.7.6.tgz#af98589ce6e7ab09618d29451faacb81220bd3ba"
+browserslist@^4.0.0:
+  version "4.16.3"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.16.3.tgz#340aa46940d7db878748567c5dea24a48ddf3717"
+  integrity sha512-vIyhWmIkULaq04Gt93txdh+j02yX/JzlyhLYbV3YQCn/zvES3JnY7TifHHvvr1w5hTDluNKMkV05cs4vy8Q7sw==
   dependencies:
-    caniuse-db "^1.0.30000631"
-    electron-to-chromium "^1.2.5"
+    caniuse-lite "^1.0.30001181"
+    colorette "^1.2.1"
+    electron-to-chromium "^1.3.649"
+    escalade "^3.1.1"
+    node-releases "^1.1.70"
 
 buffer-shims@^1.0.0:
   version "1.0.0"
@@ -191,16 +202,43 @@ builtin-modules@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
 
+call-bind@^1.0.0, call-bind@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/call-bind/-/call-bind-1.0.2.tgz#b1d4e89e688119c3c9a903ad30abb2f6a919be3c"
+  integrity sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==
+  dependencies:
+    function-bind "^1.1.1"
+    get-intrinsic "^1.0.2"
+
+caller-callsite@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-callsite/-/caller-callsite-2.0.0.tgz#847e0fce0a223750a9a027c54b33731ad3154134"
+  integrity sha1-hH4PzgoiN1CpoCfFSzNzGtMVQTQ=
+  dependencies:
+    callsites "^2.0.0"
+
 caller-path@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
   dependencies:
     callsites "^0.2.0"
 
+caller-path@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-2.0.0.tgz#468f83044e369ab2010fac5f06ceee15bb2cb1f4"
+  integrity sha1-Ro+DBE42mrIBD6xfBs7uFbsssfQ=
+  dependencies:
+    caller-callsite "^2.0.0"
+
 callsites@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
 
+callsites@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-2.0.0.tgz#06eb84f00eea413da86affefacbffb36093b3c50"
+  integrity sha1-BuuE8A7qQT2oav/vrL/7Ngk7PFA=
+
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -220,18 +258,20 @@ camelcase@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
 
-caniuse-api@^1.5.2:
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-1.5.3.tgz#5018e674b51c393e4d50614275dc017e27c4a2a2"
+caniuse-api@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/caniuse-api/-/caniuse-api-3.0.0.tgz#5e4d90e2274961d46291997df599e3ed008ee4c0"
+  integrity sha512-bsTwuIg/BZZK/vreVTYYbSWoe2F+71P7K5QGEX+pT250DZbfU1MQ5prOKpPR+LL6uWKK3KMwMCAS74QB3Um1uw==
   dependencies:
-    browserslist "^1.0.1"
-    caniuse-db "^1.0.30000346"
-    lodash.memoize "^4.1.0"
-    lodash.uniq "^4.3.0"
+    browserslist "^4.0.0"
+    caniuse-lite "^1.0.0"
+    lodash.memoize "^4.1.2"
+    lodash.uniq "^4.5.0"
 
-caniuse-db@^1.0.30000346, caniuse-db@^1.0.30000628, caniuse-db@^1.0.30000631:
-  version "1.0.30000634"
-  resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30000634.tgz#439f4b95e715b1fd105196d40c681edd7122e622"
+caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001181:
+  version "1.0.30001207"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001207.tgz#364d47d35a3007e528f69adb6fecb07c2bb2cc50"
+  integrity sha512-UPQZdmAsyp2qfCTiMU/zqGSWOYaY9F9LL61V8f+8MrubsaDGpaHD9HRV/EWZGULZn0Hxu48SKzI5DgFwTvHuYw==
 
 caseless@~0.12.0:
   version "0.12.0"
@@ -254,16 +294,19 @@ chalk@^1.0.0, chalk@^1.1.0, chalk@^1.1.1, chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
+chalk@^2.4.1, chalk@^2.4.2:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
+  integrity sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
 circular-json@^0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.1.tgz#be8b36aefccde8b3ca7aa2d6afc07a37242c0d2d"
 
-clap@^1.0.9:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/clap/-/clap-1.1.2.tgz#316545bf22229225a2cecaa6824cd2f56a9709ed"
-  dependencies:
-    chalk "^1.1.3"
-
 cli-cursor@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
@@ -290,18 +333,17 @@ cliui@^3.2.0:
     strip-ansi "^3.0.1"
     wrap-ansi "^2.0.0"
 
-clone@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.2.tgz#260b7a99ebb1edfe247538175f783243cb19d149"
-
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
 
-coa@~1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/coa/-/coa-1.0.1.tgz#7f959346cfc8719e3f7233cd6852854a7c67d8a3"
+coa@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/coa/-/coa-2.0.2.tgz#43f6c21151b4ef2bf57187db0d73de229e3e7ec3"
+  integrity sha512-q5/jG+YQnSy4nRTV4F7lPepBJZ8qBNJJDBuJdoejDyLXgmL7IEo+Le2JDZudFTFt7mrCqIRaSjws4ygRCTCAXA==
   dependencies:
+    "@types/q" "^1.5.1"
+    chalk "^2.4.1"
     q "^1.1.2"
 
 code-point-at@^1.0.0:
@@ -317,41 +359,42 @@ codecov@^1.0.1:
     request ">=2.42.0"
     urlgrey ">=0.4.0"
 
-color-convert@^1.3.0:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.0.tgz#1accf97dd739b983bf994d56fec8f95853641b7a"
+color-convert@^1.9.0, color-convert@^1.9.1:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
+  integrity sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==
   dependencies:
-    color-name "^1.1.1"
+    color-name "1.1.3"
 
-color-name@^1.0.0, color-name@^1.1.1:
+color-name@1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+  integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
+
+color-name@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.1.tgz#4b1415304cf50028ea81643643bd82ea05803689"
 
-color-string@^0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/color-string/-/color-string-0.3.0.tgz#27d46fb67025c5c2fa25993bfbf579e47841b991"
+color-string@^1.5.4:
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.5.5.tgz#65474a8f0e7439625f3d27a6a19d89fc45223014"
+  integrity sha512-jgIoum0OfQfq9Whcfc2z/VhCNcmQjWbey6qBX0vqt7YICflUmBCh9E9CiQD5GSJ+Uehixm3NUwHVhqUAWRivZg==
   dependencies:
     color-name "^1.0.0"
+    simple-swizzle "^0.2.2"
 
-color@^0.11.0:
-  version "0.11.4"
-  resolved "https://registry.yarnpkg.com/color/-/color-0.11.4.tgz#6d7b5c74fb65e841cd48792ad1ed5e07b904d764"
-  dependencies:
-    clone "^1.0.2"
-    color-convert "^1.3.0"
-    color-string "^0.3.0"
-
-colormin@^1.0.5:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/colormin/-/colormin-1.1.2.tgz#ea2f7420a72b96881a38aae59ec124a6f7298133"
+color@^3.0.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/color/-/color-3.1.3.tgz#ca67fb4e7b97d611dcde39eceed422067d91596e"
+  integrity sha512-xgXAcTHa2HeFCGLE9Xs/R82hujGtu9Jd9x4NW3T34+OMs7VoPsjwzRczKHvTAHeJwWFwX5j15+MgAppE8ztObQ==
   dependencies:
-    color "^0.11.0"
-    css-color-names "0.0.4"
-    has "^1.0.1"
+    color-convert "^1.9.1"
+    color-string "^1.5.4"
 
-colors@~1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
+colorette@^1.2.1:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.2.tgz#cbcc79d5e99caea2dbf10eb3a26fd8b3e6acfa94"
+  integrity sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==
 
 combined-stream@^1.0.5, combined-stream@~1.0.5:
   version "1.0.5"
@@ -524,16 +567,49 @@ core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+cosmiconfig@^5.0.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.2.1.tgz#040f726809c591e77a17c0a3626ca45b4f168b1a"
+  integrity sha512-H65gsXo1SKjf8zmrJ67eJk8aIRKV5ff2D4uKZIBZShbhGSpEmsQOPW/SKMKYhSTrqR7ufy6RP69rPogdaPh/kA==
+  dependencies:
+    import-fresh "^2.0.0"
+    is-directory "^0.3.1"
+    js-yaml "^3.13.1"
+    parse-json "^4.0.0"
+
 cryptiles@2.x.x:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/cryptiles/-/cryptiles-2.0.5.tgz#3bdfecdc608147c1c67202fa291e7dca59eaa3b8"
   dependencies:
     boom "2.x.x"
 
-css-color-names@0.0.4:
+css-color-names@0.0.4, css-color-names@^0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
 
+css-declaration-sorter@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/css-declaration-sorter/-/css-declaration-sorter-4.0.1.tgz#c198940f63a76d7e36c1e71018b001721054cb22"
+  integrity sha512-BcxQSKTSEEQUftYpBVnsH4SF05NTuBokb19/sBt6asXGKZ/6VP7PLG1CBCkFDYOnhXhPh0jMhO6xZ71oYHXHBA==
+  dependencies:
+    postcss "^7.0.1"
+    timsort "^0.3.0"
+
+css-select-base-adapter@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/css-select-base-adapter/-/css-select-base-adapter-0.1.1.tgz#3b2ff4972cc362ab88561507a95408a1432135d7"
+  integrity sha512-jQVeeRG70QI08vSTwf1jHxp74JoZsr2XSgETae8/xC8ovSnL2WF87GTLO86Sbwdt2lK4Umg4HnnwMO4YF3Ce7w==
+
+css-select@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-2.1.0.tgz#6a34653356635934a81baca68d0255432105dbef"
+  integrity sha512-Dqk7LQKpwLoH3VovzZnkzegqNSuAziQyNZUcrdDM401iY+R5NkGBXGmtO05/yaXQziALuPogeG0b7UAgjnTJTQ==
+  dependencies:
+    boolbase "^1.0.0"
+    css-what "^3.2.1"
+    domutils "^1.7.0"
+    nth-check "^1.0.2"
+
 css-selector-tokenizer@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/css-selector-tokenizer/-/css-selector-tokenizer-0.6.0.tgz#6445f582c7930d241dcc5007a43d6fcb8f073152"
@@ -550,53 +626,110 @@ css-selector-tokenizer@^0.7.0:
     fastparse "^1.1.1"
     regexpu-core "^1.0.0"
 
+css-tree@1.0.0-alpha.37:
+  version "1.0.0-alpha.37"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.0.0-alpha.37.tgz#98bebd62c4c1d9f960ec340cf9f7522e30709a22"
+  integrity sha512-DMxWJg0rnz7UgxKT0Q1HU/L9BeJI0M6ksor0OgqOnF+aRCDWg/N2641HmVyU9KVIu0OVVWOb2IpC9A+BJRnejg==
+  dependencies:
+    mdn-data "2.0.4"
+    source-map "^0.6.1"
+
+css-tree@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.1.3.tgz#eb4870fb6fd7707327ec95c2ff2ab09b5e8db91d"
+  integrity sha512-tRpdppF7TRazZrjJ6v3stzv93qxRcSsFmW6cX0Zm2NVKpxE1WV1HblnghVv9TreireHkqI/VDEsfolRF1p6y7Q==
+  dependencies:
+    mdn-data "2.0.14"
+    source-map "^0.6.1"
+
+css-what@^3.2.1:
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-3.4.2.tgz#ea7026fcb01777edbde52124e21f327e7ae950e4"
+  integrity sha512-ACUm3L0/jiZTqfzRM3Hi9Q8eZqd6IK37mMWPLz9PJxkLWllYeRf+EHUSHYEtFop2Eqytaq1FizFVh7XfBnXCDQ==
+
 cssesc@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-0.1.0.tgz#c814903e45623371a0477b40109aaafbeeaddbb4"
 
-"cssnano@>=2.6.1 <4":
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-3.10.0.tgz#4f38f6cea2b9b17fa01490f23f1dc68ea65c1c38"
+cssesc@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-3.0.0.tgz#37741919903b868565e1c09ea747445cd18983ee"
+  integrity sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg==
+
+cssnano-preset-default@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/cssnano-preset-default/-/cssnano-preset-default-4.0.8.tgz#920622b1fc1e95a34e8838203f1397a504f2d3ff"
+  integrity sha512-LdAyHuq+VRyeVREFmuxUZR1TXjQm8QQU/ktoo/x7bz+SdOge1YKc5eMN6pRW7YWBmyq59CqYba1dJ5cUukEjLQ==
+  dependencies:
+    css-declaration-sorter "^4.0.1"
+    cssnano-util-raw-cache "^4.0.1"
+    postcss "^7.0.0"
+    postcss-calc "^7.0.1"
+    postcss-colormin "^4.0.3"
+    postcss-convert-values "^4.0.1"
+    postcss-discard-comments "^4.0.2"
+    postcss-discard-duplicates "^4.0.2"
+    postcss-discard-empty "^4.0.1"
+    postcss-discard-overridden "^4.0.1"
+    postcss-merge-longhand "^4.0.11"
+    postcss-merge-rules "^4.0.3"
+    postcss-minify-font-values "^4.0.2"
+    postcss-minify-gradients "^4.0.2"
+    postcss-minify-params "^4.0.2"
+    postcss-minify-selectors "^4.0.2"
+    postcss-normalize-charset "^4.0.1"
+    postcss-normalize-display-values "^4.0.2"
+    postcss-normalize-positions "^4.0.2"
+    postcss-normalize-repeat-style "^4.0.2"
+    postcss-normalize-string "^4.0.2"
+    postcss-normalize-timing-functions "^4.0.2"
+    postcss-normalize-unicode "^4.0.1"
+    postcss-normalize-url "^4.0.1"
+    postcss-normalize-whitespace "^4.0.2"
+    postcss-ordered-values "^4.1.2"
+    postcss-reduce-initial "^4.0.3"
+    postcss-reduce-transforms "^4.0.2"
+    postcss-svgo "^4.0.3"
+    postcss-unique-selectors "^4.0.1"
+
+cssnano-util-get-arguments@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/cssnano-util-get-arguments/-/cssnano-util-get-arguments-4.0.0.tgz#ed3a08299f21d75741b20f3b81f194ed49cc150f"
+  integrity sha1-7ToIKZ8h11dBsg87gfGU7UnMFQ8=
+
+cssnano-util-get-match@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/cssnano-util-get-match/-/cssnano-util-get-match-4.0.0.tgz#c0e4ca07f5386bb17ec5e52250b4f5961365156d"
+  integrity sha1-wOTKB/U4a7F+xeUiULT1lhNlFW0=
+
+cssnano-util-raw-cache@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/cssnano-util-raw-cache/-/cssnano-util-raw-cache-4.0.1.tgz#b26d5fd5f72a11dfe7a7846fb4c67260f96bf282"
+  integrity sha512-qLuYtWK2b2Dy55I8ZX3ky1Z16WYsx544Q0UWViebptpwn/xDBmog2TLg4f+DBMg1rJ6JDWtn96WHbOKDWt1WQA==
   dependencies:
-    autoprefixer "^6.3.1"
-    decamelize "^1.1.2"
-    defined "^1.0.0"
-    has "^1.0.1"
-    object-assign "^4.0.1"
-    postcss "^5.0.14"
-    postcss-calc "^5.2.0"
-    postcss-colormin "^2.1.8"
-    postcss-convert-values "^2.3.4"
-    postcss-discard-comments "^2.0.4"
-    postcss-discard-duplicates "^2.0.1"
-    postcss-discard-empty "^2.0.1"
-    postcss-discard-overridden "^0.1.1"
-    postcss-discard-unused "^2.2.1"
-    postcss-filter-plugins "^2.0.0"
-    postcss-merge-idents "^2.1.5"
-    postcss-merge-longhand "^2.0.1"
-    postcss-merge-rules "^2.0.3"
-    postcss-minify-font-values "^1.0.2"
-    postcss-minify-gradients "^1.0.1"
-    postcss-minify-params "^1.0.4"
-    postcss-minify-selectors "^2.0.4"
-    postcss-normalize-charset "^1.1.0"
-    postcss-normalize-url "^3.0.7"
-    postcss-ordered-values "^2.1.0"
-    postcss-reduce-idents "^2.2.2"
-    postcss-reduce-initial "^1.0.0"
-    postcss-reduce-transforms "^1.0.3"
-    postcss-svgo "^2.1.1"
-    postcss-unique-selectors "^2.0.2"
-    postcss-value-parser "^3.2.3"
-    postcss-zindex "^2.0.1"
-
-csso@~2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/csso/-/csso-2.3.1.tgz#4f8d91a156f2f1c2aebb40b8fb1b5eb83d94d3b9"
-  dependencies:
-    clap "^1.0.9"
-    source-map "^0.5.3"
+    postcss "^7.0.0"
+
+cssnano-util-same-parent@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/cssnano-util-same-parent/-/cssnano-util-same-parent-4.0.1.tgz#574082fb2859d2db433855835d9a8456ea18bbf3"
+  integrity sha512-WcKx5OY+KoSIAxBW6UBBRay1U6vkYheCdjyVNDm85zt5K9mHoGOfsOsqIszfAqrQQFIIKgjh2+FDgIj/zsl21Q==
+
+cssnano@>=4.0.0:
+  version "4.1.11"
+  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-4.1.11.tgz#c7b5f5b81da269cb1fd982cb960c1200910c9a99"
+  integrity sha512-6gZm2htn7xIPJOHY824ERgj8cNPgPxyCSnkXc4v7YvNW+TdVfzgngHcEhy/8D11kUWRUMbke+tC+AUcUsnMz2g==
+  dependencies:
+    cosmiconfig "^5.0.0"
+    cssnano-preset-default "^4.0.8"
+    is-resolvable "^1.0.0"
+    postcss "^7.0.0"
+
+csso@^4.0.2:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/csso/-/csso-4.2.0.tgz#ea3a561346e8dc9f546d6febedd50187cf389529"
+  integrity sha512-wvlcdIbf6pwKEk7vHj8/Bkc0B4ylXZruLvOgs9doS5eOsOpuodOV2zJChSpkp+pRpYQLQMeF04nr3Z68Sta9jA==
+  dependencies:
+    css-tree "^1.1.2"
 
 currently-unhandled@^0.4.1:
   version "0.4.1"
@@ -649,9 +782,12 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
-defined@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
+define-properties@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
+  integrity sha512-3MqfYKj2lLzdMSf8ZIZE/V+Zuy+BgD6f164e8K2w7dgnpKArBDerGYpM46IYYcjnkdPNMjPk9A6VFB8+3SKlXQ==
+  dependencies:
+    object-keys "^1.0.12"
 
 del@^2.0.2:
   version "2.2.2"
@@ -680,32 +816,109 @@ doctrine@^1.2.2:
     esutils "^2.0.2"
     isarray "^1.0.0"
 
+dom-serializer@0:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.2.2.tgz#1afb81f533717175d478655debc5e332d9f9bb51"
+  integrity sha512-2/xPb3ORsQ42nHYiSunXkDjPLBaEj/xTwUO4B7XCZQTRk7EBtTOPaygh10YAAh2OI1Qrp6NWfpAhzswj0ydt9g==
+  dependencies:
+    domelementtype "^2.0.1"
+    entities "^2.0.0"
+
+domelementtype@1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.1.tgz#d048c44b37b0d10a7f2a3d5fee3f4333d790481f"
+  integrity sha512-BSKB+TSpMpFI/HOxCNr1O8aMOTZ8hT3pM3GQ0w/mWRmkhEDSFJkkyzz4XQsBV44BChwGkrDfMyjVD0eA2aFV3w==
+
+domelementtype@^2.0.1:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-2.2.0.tgz#9a0b6c2782ed6a1c7323d42267183df9bd8b1d57"
+  integrity sha512-DtBMo82pv1dFtUmHyr48beiuq792Sxohr+8Hm9zoxklYPfa6n0Z3Byjj2IV7bmr2IyqClnqEQhfgHJJ5QF0R5A==
+
+domutils@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.7.0.tgz#56ea341e834e06e6748af7a1cb25da67ea9f8c2a"
+  integrity sha512-Lgd2XcJ/NjEw+7tFvfKxOzCYKZsdct5lczQ2ZaQY8Djz7pfAD3Gbp8ySJWtreII/vDlMVmxwa6pHmdxIYgttDg==
+  dependencies:
+    dom-serializer "0"
+    domelementtype "1"
+
 dot-prop@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-3.0.0.tgz#1b708af094a49c9a0e7dbcad790aba539dac1177"
   dependencies:
     is-obj "^1.0.0"
 
+dot-prop@^5.2.0:
+  version "5.3.0"
+  resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-5.3.0.tgz#90ccce708cd9cd82cc4dc8c3ddd9abdd55b20e88"
+  integrity sha512-QM8q3zDe58hqUqjraQOmzZ1LIH9SWQJTlEKCH4kJ2oQvLZk7RbQXvtDM2XEq3fwkV9CCvvH4LA0AV+ogFsBM2Q==
+  dependencies:
+    is-obj "^2.0.0"
+
 ecc-jsbn@~0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz#0fc73a9ed5f0d53c38193398523ef7e543777505"
   dependencies:
     jsbn "~0.1.0"
 
-electron-to-chromium@^1.2.5:
-  version "1.2.6"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.2.6.tgz#f38ad51d1919b06bc07275c62629db803ddca05a"
+electron-to-chromium@^1.3.649:
+  version "1.3.709"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.709.tgz#d7be0b5686a2fdfe8bad898faa3a428d04d8f656"
+  integrity sha512-LolItk2/ikSGQ7SN8UkuKVNMBZp3RG7Itgaxj1npsHRzQobj9JjMneZOZfLhtwlYBe5fCJ75k+cVCiDFUs23oA==
 
 emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
 
+entities@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-2.2.0.tgz#098dc90ebb83d8dffa089d55256b351d34c4da55"
+  integrity sha512-p92if5Nz619I0w+akJrLZH0MX0Pb5DX39XOwQTtXSdQQOaYH03S1uIQp4mhOZtAXrxq4ViO67YTiLBo2638o9A==
+
 error-ex@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
   dependencies:
     is-arrayish "^0.2.1"
 
+error-ex@^1.3.1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
+  integrity sha512-7dFHNmqeFSEt2ZBsCriorKnn3Z2pj+fd9kmI6QoWw4//DL+icEBfc0U7qJCisqrTsKTjw4fNFy2pW9OqStD84g==
+  dependencies:
+    is-arrayish "^0.2.1"
+
+es-abstract@^1.17.2, es-abstract@^1.18.0-next.2:
+  version "1.18.0"
+  resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.18.0.tgz#ab80b359eecb7ede4c298000390bc5ac3ec7b5a4"
+  integrity sha512-LJzK7MrQa8TS0ja2w3YNLzUgJCGPdPOV1yVvezjNnS89D+VR08+Szt2mz3YB2Dck/+w5tfIq/RoUAFqJJGM2yw==
+  dependencies:
+    call-bind "^1.0.2"
+    es-to-primitive "^1.2.1"
+    function-bind "^1.1.1"
+    get-intrinsic "^1.1.1"
+    has "^1.0.3"
+    has-symbols "^1.0.2"
+    is-callable "^1.2.3"
+    is-negative-zero "^2.0.1"
+    is-regex "^1.1.2"
+    is-string "^1.0.5"
+    object-inspect "^1.9.0"
+    object-keys "^1.1.1"
+    object.assign "^4.1.2"
+    string.prototype.trimend "^1.0.4"
+    string.prototype.trimstart "^1.0.4"
+    unbox-primitive "^1.0.0"
+
+es-to-primitive@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/es-to-primitive/-/es-to-primitive-1.2.1.tgz#e55cd4c9cdc188bcefb03b366c736323fc5c898a"
+  integrity sha512-QCOllgZJtaUo9miYBcLChTUaHNjJF3PYs1VidD7AwiEj1kYxKeQTctLAezAOH5ZKRH0g2IgPn6KwB4IT8iRpvA==
+  dependencies:
+    is-callable "^1.1.4"
+    is-date-object "^1.0.1"
+    is-symbol "^1.0.2"
+
 es5-ext@^0.10.7, es5-ext@^0.10.8, es5-ext@~0.10.11, es5-ext@~0.10.2, es5-ext@~0.10.7:
   version "0.10.12"
   resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.12.tgz#aa84641d4db76b62abba5e45fd805ecbab140047"
@@ -758,6 +971,11 @@ es6-weak-map@^2.0.1:
     es6-iterator "2"
     es6-symbol "3"
 
+escalade@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
+  integrity sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==
+
 escape-string-regexp@1.0.5, 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"
@@ -828,7 +1046,7 @@ espree@^3.3.1:
     acorn "4.0.4"
     acorn-jsx "^3.0.0"
 
-esprima@2.7.x, esprima@^2.6.0, esprima@^2.7.1:
+esprima@2.7.x, esprima@^2.7.1:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
 
@@ -836,6 +1054,11 @@ esprima@^3.1.1:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
 
+esprima@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
+  integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
+
 esrecurse@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.1.0.tgz#4713b6536adf7f2ac4f327d559e7756bff648220"
@@ -922,10 +1145,6 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
-flatten@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/flatten/-/flatten-1.0.2.tgz#dae46a9d78fbe25292258cc1e780a41d95c03782"
-
 forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
@@ -948,9 +1167,10 @@ fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
 
-function-bind@^1.0.2:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.0.tgz#16176714c801798e4e8f2cf7f7529467bb4a5771"
+function-bind@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
+  integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
 
 generate-function@^2.0.0:
   version "2.0.0"
@@ -966,6 +1186,15 @@ get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
 
+get-intrinsic@^1.0.2, get-intrinsic@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/get-intrinsic/-/get-intrinsic-1.1.1.tgz#15f59f376f855c446963948f0d24cd3637b4abc6"
+  integrity sha512-kWZrnVM42QCiEA2Ig1bG8zjoIMOgxWwYCEeNdwY6Tv/cOSeGpcoX4pXHfKUxNKVoArnrEr2e9srnAxxGIraS9Q==
+  dependencies:
+    function-bind "^1.1.1"
+    has "^1.0.3"
+    has-symbols "^1.0.1"
+
 get-pkg-repo@^1.0.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/get-pkg-repo/-/get-pkg-repo-1.3.0.tgz#43c6b4c048b75dd604fc5388edecde557f6335df"
@@ -1117,15 +1346,31 @@ has-ansi@^2.0.0:
   dependencies:
     ansi-regex "^2.0.0"
 
+has-bigints@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/has-bigints/-/has-bigints-1.0.1.tgz#64fe6acb020673e3b78db035a5af69aa9d07b113"
+  integrity sha512-LSBS2LjbNBTf6287JEbEzvJgftkF5qFkmCo9hDRpAzKhUOlJ+hx8dd4USs00SgsUNwc4617J9ki5YtEClM2ffA==
+
 has-flag@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
 
-has@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/has/-/has-1.0.1.tgz#8461733f538b0837c9361e39a9ab9e9704dc2f28"
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+  integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
+
+has-symbols@^1.0.1, has-symbols@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/has-symbols/-/has-symbols-1.0.2.tgz#165d3070c00309752a1236a479331e3ac56f1423"
+  integrity sha512-chXa79rL/UC2KlX17jo3vRGz0azaWEx5tGqZg5pO3NUyEJVB17dMruQlzCCOfUvElghKcm5194+BCRvi2Rv/Gw==
+
+has@^1.0.0, has@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/has/-/has-1.0.3.tgz#722d7cbfc1f6aa8241f16dd814e011e1f41e8796"
+  integrity sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==
   dependencies:
-    function-bind "^1.0.2"
+    function-bind "^1.1.1"
 
 hawk@~3.1.3:
   version "3.1.3"
@@ -1136,6 +1381,11 @@ hawk@~3.1.3:
     hoek "2.x.x"
     sntp "1.x.x"
 
+hex-color-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/hex-color-regex/-/hex-color-regex-1.1.0.tgz#4c06fccb4602fe2602b3c93df82d7e7dbf1a8a8e"
+  integrity sha512-l9sfDFsuqtOqKDsQdqrMRk0U85RZc0RtOR9yPI7mRVOa4FsR/BVnZ0shmQRM96Ji99kYZP/7hn1cedc1+ApsTQ==
+
 hoek@2.x.x:
   version "2.16.3"
   resolved "https://registry.yarnpkg.com/hoek/-/hoek-2.16.3.tgz#20bb7403d3cea398e91dc4710a8ff1b8274a25ed"
@@ -1144,9 +1394,15 @@ hosted-git-info@^2.1.4:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.2.0.tgz#7a0d097863d886c0fabbdcd37bf1758d8becf8a5"
 
-html-comment-regex@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/html-comment-regex/-/html-comment-regex-1.1.1.tgz#668b93776eaae55ebde8f3ad464b307a4963625e"
+hsl-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/hsl-regex/-/hsl-regex-1.0.0.tgz#d49330c789ed819e276a4c0d272dffa30b18fe6e"
+  integrity sha1-1JMwx4ntgZ4nakwNJy3/owsY/m4=
+
+hsla-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/hsla-regex/-/hsla-regex-1.0.0.tgz#c1ce7a3168c8c6614033a4b5f7877f3b225f9c38"
+  integrity sha1-wc56MWjIxmFAM6S194d/OyJfnDg=
 
 http-signature@~1.1.0:
   version "1.1.1"
@@ -1170,6 +1426,14 @@ ignore@^3.2.0:
   version "3.2.4"
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.2.4.tgz#4055e03596729a8fabe45a43c100ad5ed815c4e8"
 
+import-fresh@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/import-fresh/-/import-fresh-2.0.0.tgz#d81355c15612d386c61f9ddd3922d4304822a546"
+  integrity sha1-2BNVwVYS04bGH53dOSLUMEgipUY=
+  dependencies:
+    caller-path "^2.0.0"
+    resolve-from "^3.0.0"
+
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
@@ -1233,6 +1497,23 @@ is-arrayish@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
 
+is-arrayish@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.3.2.tgz#4574a2ae56f7ab206896fb431eaeed066fdf8f03"
+  integrity sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ==
+
+is-bigint@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-bigint/-/is-bigint-1.0.1.tgz#6923051dfcbc764278540b9ce0e6b3213aa5ebc2"
+  integrity sha512-J0ELF4yHFxHy0cmSxZuheDOz2luOdVvqjwmEcj8H/L1JHeuEDSDbeRP+Dk9kFVk5RTFzbucJ2Kb9F7ixY2QaCg==
+
+is-boolean-object@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-boolean-object/-/is-boolean-object-1.1.0.tgz#e2aaad3a3a8fca34c28f6eee135b156ed2587ff0"
+  integrity sha512-a7Uprx8UtD+HWdyYwnD1+ExtTgqQtD2k/1yJgtXP6wnMm8byhkoTZRl+95LLThpzNZJ5aEvi46cdH+ayMFRwmA==
+  dependencies:
+    call-bind "^1.0.0"
+
 is-buffer@^1.0.2:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.4.tgz#cfc86ccd5dc5a52fa80489111c6920c457e2d98b"
@@ -1243,6 +1524,33 @@ is-builtin-module@^1.0.0:
   dependencies:
     builtin-modules "^1.0.0"
 
+is-callable@^1.1.4, is-callable@^1.2.3:
+  version "1.2.3"
+  resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.2.3.tgz#8b1e0500b73a1d76c70487636f368e519de8db8e"
+  integrity sha512-J1DcMe8UYTBSrKezuIUTUwjXsho29693unXM2YhJUTR2txK/eG47bvNa/wipPFmZFgr/N6f1GA66dv0mEyTIyQ==
+
+is-color-stop@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-color-stop/-/is-color-stop-1.1.0.tgz#cfff471aee4dd5c9e158598fbe12967b5cdad345"
+  integrity sha1-z/9HGu5N1cnhWFmPvhKWe1za00U=
+  dependencies:
+    css-color-names "^0.0.4"
+    hex-color-regex "^1.1.0"
+    hsl-regex "^1.0.0"
+    hsla-regex "^1.0.0"
+    rgb-regex "^1.0.1"
+    rgba-regex "^1.0.0"
+
+is-date-object@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-date-object/-/is-date-object-1.0.2.tgz#bda736f2cd8fd06d32844e7743bfa7494c3bfd7e"
+  integrity sha512-USlDT524woQ08aoZFzh3/Z6ch9Y/EWXEHQ/AaRN0SkKq4t2Jw2R2339tSXmwuVoY7LLlBCbOIlx2myP/L5zk0g==
+
+is-directory@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+  integrity sha1-YTObbyR1/Hcv2cnYP1yFddwVSuE=
+
 is-finite@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
@@ -1268,10 +1576,25 @@ is-my-json-valid@^2.10.0:
     jsonpointer "^4.0.0"
     xtend "^4.0.0"
 
+is-negative-zero@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is-negative-zero/-/is-negative-zero-2.0.1.tgz#3de746c18dda2319241a53675908d8f766f11c24"
+  integrity sha512-2z6JzQvZRa9A2Y7xC6dQQm4FSTSTNWjKIYYTt4246eMTJmIo0Q+ZyOsU66X8lxK1AbB92dFeglPLrhwpeRKO6w==
+
+is-number-object@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/is-number-object/-/is-number-object-1.0.4.tgz#36ac95e741cf18b283fc1ddf5e83da798e3ec197"
+  integrity sha512-zohwelOAur+5uXtk8O3GPQ1eAcu4ZX3UwxQhUlfFFMNpUd83gXgjbhJh6HmB6LUNV/ieOLQuDwJO3dWJosUeMw==
+
 is-obj@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
 
+is-obj@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-2.0.0.tgz#473fb05d973705e3fd9620545018ca8e22ef4982"
+  integrity sha512-drqDG3cbczxxEJRoOXcOjtdp1J/lyp1mNn0xaznRs8+muBhgQcrnbspox5X5fOw0HnMnbfDzvnEMEtqDEJEo8w==
+
 is-path-cwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-path-cwd/-/is-path-cwd-1.0.0.tgz#d225ec23132e89edd38fda767472e62e65f1106d"
@@ -1288,29 +1611,39 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
-is-plain-obj@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
-
 is-property@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
 
+is-regex@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/is-regex/-/is-regex-1.1.2.tgz#81c8ebde4db142f2cf1c53fc86d6a45788266251"
+  integrity sha512-axvdhb5pdhEVThqJzYXwMlVuZwC+FF2DpcOhTS+y/8jVq4trxyPgfcwIxIKiyeuLlSQYKkmUaPQJ8ZE4yNKXDg==
+  dependencies:
+    call-bind "^1.0.2"
+    has-symbols "^1.0.1"
+
 is-resolvable@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.0.0.tgz#8df57c61ea2e3c501408d100fb013cf8d6e0cc62"
   dependencies:
     tryit "^1.0.1"
 
+is-string@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/is-string/-/is-string-1.0.5.tgz#40493ed198ef3ff477b8c7f92f644ec82a5cd3a6"
+  integrity sha512-buY6VNRjhQMiF1qWDouloZlQbRhDPCebwxSjxMjxgemYT46YMd2NR0/H+fBhEfWX4A/w9TBJ+ol+okqJKFE6vQ==
+
 is-subset@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/is-subset/-/is-subset-0.1.1.tgz#8a59117d932de1de00f245fcdd39ce43f1e939a6"
 
-is-svg@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/is-svg/-/is-svg-2.1.0.tgz#cf61090da0d9efbcab8722deba6f032208dbb0e9"
+is-symbol@^1.0.2, is-symbol@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/is-symbol/-/is-symbol-1.0.3.tgz#38e1014b9e6329be0de9d24a414fd7441ec61937"
+  integrity sha512-OwijhaRSgqvhm/0ZdAcXNZt9lYdKFpcRDT5ULUuYXPoT794UNOdU+gpT6Rzo7b4V2HUl/op6GqY894AZwv9faQ==
   dependencies:
-    html-comment-regex "^1.1.0"
+    has-symbols "^1.0.1"
 
 is-text-path@^1.0.0:
   version "1.0.1"
@@ -1378,12 +1711,13 @@ js-yaml@3.x, js-yaml@^3.5.1:
     argparse "^1.0.7"
     esprima "^3.1.1"
 
-js-yaml@~3.7.0:
-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.7.0.tgz#5c967ddd837a9bfdca5f2de84253abe8a1c03b80"
+js-yaml@^3.13.1:
+  version "3.14.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
+  integrity sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==
   dependencies:
     argparse "^1.0.7"
-    esprima "^2.6.0"
+    esprima "^4.0.0"
 
 jsbn@~0.1.0:
   version "0.1.1"
@@ -1393,6 +1727,11 @@ jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
+json-parse-better-errors@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
+  integrity sha512-mrqyZKfX5EhL7hvqcV6WG1yYjnjeuYDzDhhcAAUrq8Po85NBQBJP+ZDUT75qZQ98IkUoBqdkExkukOU7Ts2wrw==
+
 json-schema@0.2.3:
   version "0.2.3"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
@@ -1531,9 +1870,10 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash.memoize@^4.1.0:
+lodash.memoize@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
+  integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
 
 lodash.template@^4.0.2:
   version "4.4.0"
@@ -1548,9 +1888,10 @@ lodash.templatesettings@^4.0.0:
   dependencies:
     lodash._reinterpolate "~3.0.0"
 
-lodash.uniq@^4.3.0:
+lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
+  integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
 lodash@^4.0.0, lodash@^4.2.1, lodash@^4.3.0:
   version "4.17.4"
@@ -1567,17 +1908,19 @@ loud-rejection@^1.0.0:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
 
-macaddress@^0.2.8:
-  version "0.2.8"
-  resolved "https://registry.yarnpkg.com/macaddress/-/macaddress-0.2.8.tgz#5904dc537c39ec6dbefeae902327135fa8511f12"
-
 map-obj@^1.0.0, map-obj@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-1.0.1.tgz#d933ceb9205d82bdcf4886f6742bdc2b4dea146d"
 
-math-expression-evaluator@^1.2.14:
-  version "1.2.16"
-  resolved "https://registry.yarnpkg.com/math-expression-evaluator/-/math-expression-evaluator-1.2.16.tgz#b357fa1ca9faefb8e48d10c14ef2bcb2d9f0a7c9"
+mdn-data@2.0.14:
+  version "2.0.14"
+  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.14.tgz#7113fc4281917d63ce29b43446f701e68c25ba50"
+  integrity sha512-dn6wd0uw5GsdswPFfsgMp5NSB0/aDe6fK94YJV/AJDYXL6HVLWBsxeq7js7Ad+mU2K9LAlwpk6kN2D5mwCPVow==
+
+mdn-data@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.4.tgz#699b3c38ac6f1d728091a64650b65d388502fd5b"
+  integrity sha512-iV3XNKw06j5Q7mi6h+9vbx23Tv7JkjEVgKHW4pimwyDGWm0OIQntJJ+u1C6mg6mK1EaTv42XQ7w76yuzH7M2cA==
 
 meow@^3.3.0:
   version "3.7.0"
@@ -1660,6 +2003,11 @@ natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
+node-releases@^1.1.70:
+  version "1.1.71"
+  resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-1.1.71.tgz#cb1334b179896b1c89ecfdd4b725fb7bbdfc7dbb"
+  integrity sha512-zR6HoT6LrLCRBwukmrVbHv0EpEQjksO6GmFcZQQuCAy139BEsoVKPYnf3jongYW83fAa1torLGYwxxky/p28sg==
+
 nopt@3.x:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
@@ -1675,27 +2023,22 @@ normalize-package-data@^2.3.0, normalize-package-data@^2.3.2, normalize-package-
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
-normalize-range@^0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/normalize-range/-/normalize-range-0.1.2.tgz#2d10c06bdfd312ea9777695a4d28439456b75942"
+normalize-url@^3.0.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-3.3.0.tgz#b2e1c4dc4f7c6d57743df733a4f5978d18650559"
+  integrity sha512-U+JJi7duF1o+u2pynbp2zXDW2/PADgC30f0GsHZtRh+HOcXHnw137TrNlyxxRvWW5fjKd3bcLHPxofWuCjaeZg==
 
-normalize-url@^1.4.0:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-1.9.0.tgz#c2bb50035edee62cd81edb2d45da68dc25e3423e"
+nth-check@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.2.tgz#b2bd295c37e3dd58a3bf0700376663ba4d9cf05c"
+  integrity sha512-WeBOdju8SnzPN5vTUJYxYUxLeXpCaVP5i5e0LF8fg7WORF2Wd7wFX/pk0tYZk7s8T+J7VLy0Da6J1+wCT0AtHg==
   dependencies:
-    object-assign "^4.0.1"
-    prepend-http "^1.0.0"
-    query-string "^4.1.0"
-    sort-keys "^1.0.0"
+    boolbase "~1.0.0"
 
 null-check@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/null-check/-/null-check-1.0.0.tgz#977dffd7176012b9ec30d2a39db5cf72a0439edd"
 
-num2fraction@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/num2fraction/-/num2fraction-1.2.2.tgz#6f682b6a027a4e9ddfa4564cd2589d1d4e669ede"
-
 number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
@@ -1708,6 +2051,45 @@ object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
+object-inspect@^1.9.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.9.0.tgz#c90521d74e1127b67266ded3394ad6116986533a"
+  integrity sha512-i3Bp9iTqwhaLZBxGkRfo5ZbE07BQRT7MGu8+nNgwW9ItGp1TzCTw2DLEoWwjClxBjOFI/hWljTAmYGCEwmtnOw==
+
+object-keys@^1.0.12, object-keys@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.1.tgz#1c47f272df277f3b1daf061677d9c82e2322c60e"
+  integrity sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==
+
+object.assign@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.2.tgz#0ed54a342eceb37b38ff76eb831a0e788cb63940"
+  integrity sha512-ixT2L5THXsApyiUPYKmW+2EHpXXe5Ii3M+f4e+aJFAHao5amFRW6J0OO6c/LU8Be47utCx2GL89hxGB6XSmKuQ==
+  dependencies:
+    call-bind "^1.0.0"
+    define-properties "^1.1.3"
+    has-symbols "^1.0.1"
+    object-keys "^1.1.1"
+
+object.getownpropertydescriptors@^2.1.0:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/object.getownpropertydescriptors/-/object.getownpropertydescriptors-2.1.2.tgz#1bd63aeacf0d5d2d2f31b5e393b03a7c601a23f7"
+  integrity sha512-WtxeKSzfBjlzL+F9b7M7hewDzMwy+C8NRssHd1YrNlzHzIDrXcXiNOMrezdAEM4UXixgV+vvnyBeN7Rygl2ttQ==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+    es-abstract "^1.18.0-next.2"
+
+object.values@^1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/object.values/-/object.values-1.1.3.tgz#eaa8b1e17589f02f698db093f7c62ee1699742ee"
+  integrity sha512-nkF6PfDB9alkOUxpf1HNm/QlkeW3SReqL5WXeBLpEJJnlPSvRaDQpW3gQTksTN3fgJX4hL42RzKyOin6ff3tyw==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+    es-abstract "^1.18.0-next.2"
+    has "^1.0.3"
+
 once@1.x, once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -1756,6 +2138,14 @@ parse-json@^2.2.0:
   dependencies:
     error-ex "^1.2.0"
 
+parse-json@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"
+  integrity sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=
+  dependencies:
+    error-ex "^1.3.1"
+    json-parse-better-errors "^1.0.1"
+
 path-exists@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
@@ -1800,127 +2190,123 @@ pluralize@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-1.2.1.tgz#d1a21483fd22bb41e58a12fa3421823140897c45"
 
-postcss-calc@^5.2.0:
-  version "5.3.1"
-  resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-5.3.1.tgz#77bae7ca928ad85716e2fda42f261bf7c1d65b5e"
-  dependencies:
-    postcss "^5.0.2"
-    postcss-message-helpers "^2.0.0"
-    reduce-css-calc "^1.2.6"
-
-postcss-colormin@^2.1.8:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-2.2.2.tgz#6631417d5f0e909a3d7ec26b24c8a8d1e4f96e4b"
-  dependencies:
-    colormin "^1.0.5"
-    postcss "^5.0.13"
-    postcss-value-parser "^3.2.3"
-
-postcss-convert-values@^2.3.4:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/postcss-convert-values/-/postcss-convert-values-2.6.1.tgz#bbd8593c5c1fd2e3d1c322bb925dcae8dae4d62d"
-  dependencies:
-    postcss "^5.0.11"
-    postcss-value-parser "^3.1.2"
-
-postcss-discard-comments@^2.0.4:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/postcss-discard-comments/-/postcss-discard-comments-2.0.4.tgz#befe89fafd5b3dace5ccce51b76b81514be00e3d"
-  dependencies:
-    postcss "^5.0.14"
-
-postcss-discard-duplicates@^2.0.1:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/postcss-discard-duplicates/-/postcss-discard-duplicates-2.1.0.tgz#b9abf27b88ac188158a5eb12abcae20263b91932"
+postcss-calc@^7.0.1:
+  version "7.0.5"
+  resolved "https://registry.yarnpkg.com/postcss-calc/-/postcss-calc-7.0.5.tgz#f8a6e99f12e619c2ebc23cf6c486fdc15860933e"
+  integrity sha512-1tKHutbGtLtEZF6PT4JSihCHfIVldU72mZ8SdZHIYriIZ9fh9k9aWSppaT8rHsyI3dX+KSR+W+Ix9BMY3AODrg==
   dependencies:
-    postcss "^5.0.4"
+    postcss "^7.0.27"
+    postcss-selector-parser "^6.0.2"
+    postcss-value-parser "^4.0.2"
 
-postcss-discard-empty@^2.0.1:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/postcss-discard-empty/-/postcss-discard-empty-2.1.0.tgz#d2b4bd9d5ced5ebd8dcade7640c7d7cd7f4f92b5"
+postcss-colormin@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-colormin/-/postcss-colormin-4.0.3.tgz#ae060bce93ed794ac71264f08132d550956bd381"
+  integrity sha512-WyQFAdDZpExQh32j0U0feWisZ0dmOtPl44qYmJKkq9xFWY3p+4qnRzCHeNrkeRhwPHz9bQ3mo0/yVkaply0MNw==
   dependencies:
-    postcss "^5.0.14"
+    browserslist "^4.0.0"
+    color "^3.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
 
-postcss-discard-overridden@^0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/postcss-discard-overridden/-/postcss-discard-overridden-0.1.1.tgz#8b1eaf554f686fb288cd874c55667b0aa3668d58"
+postcss-convert-values@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-convert-values/-/postcss-convert-values-4.0.1.tgz#ca3813ed4da0f812f9d43703584e449ebe189a7f"
+  integrity sha512-Kisdo1y77KUC0Jmn0OXU/COOJbzM8cImvw1ZFsBgBgMgb1iL23Zs/LXRe3r+EZqM3vGYKdQ2YJVQ5VkJI+zEJQ==
   dependencies:
-    postcss "^5.0.16"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
 
-postcss-discard-unused@^2.2.1:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/postcss-discard-unused/-/postcss-discard-unused-2.2.3.tgz#bce30b2cc591ffc634322b5fb3464b6d934f4433"
+postcss-discard-comments@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-discard-comments/-/postcss-discard-comments-4.0.2.tgz#1fbabd2c246bff6aaad7997b2b0918f4d7af4033"
+  integrity sha512-RJutN259iuRf3IW7GZyLM5Sw4GLTOH8FmsXBnv8Ab/Tc2k4SR4qbV4DNbyyY4+Sjo362SyDmW2DQ7lBSChrpkg==
   dependencies:
-    postcss "^5.0.14"
-    uniqs "^2.0.0"
+    postcss "^7.0.0"
 
-postcss-filter-plugins@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/postcss-filter-plugins/-/postcss-filter-plugins-2.0.2.tgz#6d85862534d735ac420e4a85806e1f5d4286d84c"
+postcss-discard-duplicates@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-discard-duplicates/-/postcss-discard-duplicates-4.0.2.tgz#3fe133cd3c82282e550fc9b239176a9207b784eb"
+  integrity sha512-ZNQfR1gPNAiXZhgENFfEglF93pciw0WxMkJeVmw8eF+JZBbMD7jp6C67GqJAXVZP2BWbOztKfbsdmMp/k8c6oQ==
   dependencies:
-    postcss "^5.0.4"
-    uniqid "^4.0.0"
+    postcss "^7.0.0"
 
-postcss-merge-idents@^2.1.5:
-  version "2.1.7"
-  resolved "https://registry.yarnpkg.com/postcss-merge-idents/-/postcss-merge-idents-2.1.7.tgz#4c5530313c08e1d5b3bbf3d2bbc747e278eea270"
+postcss-discard-empty@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-discard-empty/-/postcss-discard-empty-4.0.1.tgz#c8c951e9f73ed9428019458444a02ad90bb9f765"
+  integrity sha512-B9miTzbznhDjTfjvipfHoqbWKwd0Mj+/fL5s1QOz06wufguil+Xheo4XpOnc4NqKYBCNqqEzgPv2aPBIJLox0w==
   dependencies:
-    has "^1.0.1"
-    postcss "^5.0.10"
-    postcss-value-parser "^3.1.1"
+    postcss "^7.0.0"
 
-postcss-merge-longhand@^2.0.1:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/postcss-merge-longhand/-/postcss-merge-longhand-2.0.2.tgz#23d90cd127b0a77994915332739034a1a4f3d658"
+postcss-discard-overridden@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-discard-overridden/-/postcss-discard-overridden-4.0.1.tgz#652aef8a96726f029f5e3e00146ee7a4e755ff57"
+  integrity sha512-IYY2bEDD7g1XM1IDEsUT4//iEYCxAmP5oDSFMVU/JVvT7gh+l4fmjciLqGgwjdWpQIdb0Che2VX00QObS5+cTg==
   dependencies:
-    postcss "^5.0.4"
+    postcss "^7.0.0"
 
-postcss-merge-rules@^2.0.3:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/postcss-merge-rules/-/postcss-merge-rules-2.1.2.tgz#d1df5dfaa7b1acc3be553f0e9e10e87c61b5f721"
+postcss-merge-longhand@^4.0.11:
+  version "4.0.11"
+  resolved "https://registry.yarnpkg.com/postcss-merge-longhand/-/postcss-merge-longhand-4.0.11.tgz#62f49a13e4a0ee04e7b98f42bb16062ca2549e24"
+  integrity sha512-alx/zmoeXvJjp7L4mxEMjh8lxVlDFX1gqWHzaaQewwMZiVhLo42TEClKaeHbRf6J7j82ZOdTJ808RtN0ZOZwvw==
   dependencies:
-    browserslist "^1.5.2"
-    caniuse-api "^1.5.2"
-    postcss "^5.0.4"
-    postcss-selector-parser "^2.2.2"
+    css-color-names "0.0.4"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+    stylehacks "^4.0.0"
+
+postcss-merge-rules@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-merge-rules/-/postcss-merge-rules-4.0.3.tgz#362bea4ff5a1f98e4075a713c6cb25aefef9a650"
+  integrity sha512-U7e3r1SbvYzO0Jr3UT/zKBVgYYyhAz0aitvGIYOYK5CPmkNih+WDSsS5tvPrJ8YMQYlEMvsZIiqmn7HdFUaeEQ==
+  dependencies:
+    browserslist "^4.0.0"
+    caniuse-api "^3.0.0"
+    cssnano-util-same-parent "^4.0.0"
+    postcss "^7.0.0"
+    postcss-selector-parser "^3.0.0"
     vendors "^1.0.0"
 
-postcss-message-helpers@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/postcss-message-helpers/-/postcss-message-helpers-2.0.0.tgz#a4f2f4fab6e4fe002f0aed000478cdf52f9ba60e"
-
-postcss-minify-font-values@^1.0.2:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/postcss-minify-font-values/-/postcss-minify-font-values-1.0.5.tgz#4b58edb56641eba7c8474ab3526cafd7bbdecb69"
-  dependencies:
-    object-assign "^4.0.1"
-    postcss "^5.0.4"
-    postcss-value-parser "^3.0.2"
-
-postcss-minify-gradients@^1.0.1:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/postcss-minify-gradients/-/postcss-minify-gradients-1.0.5.tgz#5dbda11373703f83cfb4a3ea3881d8d75ff5e6e1"
-  dependencies:
-    postcss "^5.0.12"
-    postcss-value-parser "^3.3.0"
-
-postcss-minify-params@^1.0.4:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/postcss-minify-params/-/postcss-minify-params-1.2.2.tgz#ad2ce071373b943b3d930a3fa59a358c28d6f1f3"
-  dependencies:
-    alphanum-sort "^1.0.1"
-    postcss "^5.0.2"
-    postcss-value-parser "^3.0.2"
+postcss-minify-font-values@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-font-values/-/postcss-minify-font-values-4.0.2.tgz#cd4c344cce474343fac5d82206ab2cbcb8afd5a6"
+  integrity sha512-j85oO6OnRU9zPf04+PZv1LYIYOprWm6IA6zkXkrJXyRveDEuQggG6tvoy8ir8ZwjLxLuGfNkCZEQG7zan+Hbtg==
+  dependencies:
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-minify-gradients@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-gradients/-/postcss-minify-gradients-4.0.2.tgz#93b29c2ff5099c535eecda56c4aa6e665a663471"
+  integrity sha512-qKPfwlONdcf/AndP1U8SJ/uzIJtowHlMaSioKzebAXSG4iJthlWC9iSWznQcX4f66gIWX44RSA841HTHj3wK+Q==
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    is-color-stop "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-minify-params@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-params/-/postcss-minify-params-4.0.2.tgz#6b9cef030c11e35261f95f618c90036d680db874"
+  integrity sha512-G7eWyzEx0xL4/wiBBJxJOz48zAKV2WG3iZOqVhPet/9geefm/Px5uo1fzlHu+DOjT+m0Mmiz3jkQzVHe6wxAWg==
+  dependencies:
+    alphanum-sort "^1.0.0"
+    browserslist "^4.0.0"
+    cssnano-util-get-arguments "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
     uniqs "^2.0.0"
 
-postcss-minify-selectors@^2.0.4:
-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/postcss-minify-selectors/-/postcss-minify-selectors-2.1.1.tgz#b2c6a98c0072cf91b932d1a496508114311735bf"
+postcss-minify-selectors@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-minify-selectors/-/postcss-minify-selectors-4.0.2.tgz#e2e5eb40bfee500d0cd9243500f5f8ea4262fbd8"
+  integrity sha512-D5S1iViljXBj9kflQo4YutWnJmwm8VvIsU1GeXJGiG9j8CIg9zs4voPMdQDUmIxetUOh60VilsNzCiAFTOqu3g==
   dependencies:
-    alphanum-sort "^1.0.2"
-    has "^1.0.1"
-    postcss "^5.0.14"
-    postcss-selector-parser "^2.0.0"
+    alphanum-sort "^1.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-selector-parser "^3.0.0"
 
 postcss-modules-extract-imports@^1.0.0:
   version "1.0.1"
@@ -1949,87 +2335,168 @@ postcss-modules-values@^1.1.0:
     icss-replace-symbols "^1.0.2"
     postcss "^5.0.14"
 
-postcss-normalize-charset@^1.1.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/postcss-normalize-charset/-/postcss-normalize-charset-1.1.1.tgz#ef9ee71212d7fe759c78ed162f61ed62b5cb93f1"
+postcss-normalize-charset@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-charset/-/postcss-normalize-charset-4.0.1.tgz#8b35add3aee83a136b0471e0d59be58a50285dd4"
+  integrity sha512-gMXCrrlWh6G27U0hF3vNvR3w8I1s2wOBILvA87iNXaPvSNo5uZAMYsZG7XjCUf1eVxuPfyL4TJ7++SGZLc9A3g==
+  dependencies:
+    postcss "^7.0.0"
+
+postcss-normalize-display-values@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-display-values/-/postcss-normalize-display-values-4.0.2.tgz#0dbe04a4ce9063d4667ed2be476bb830c825935a"
+  integrity sha512-3F2jcsaMW7+VtRMAqf/3m4cPFhPD3EFRgNs18u+k3lTJJlVe7d0YPO+bnwqo2xg8YiRpDXJI2u8A0wqJxMsQuQ==
+  dependencies:
+    cssnano-util-get-match "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-positions@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-positions/-/postcss-normalize-positions-4.0.2.tgz#05f757f84f260437378368a91f8932d4b102917f"
+  integrity sha512-Dlf3/9AxpxE+NF1fJxYDeggi5WwV35MXGFnnoccP/9qDtFrTArZ0D0R+iKcg5WsUd8nUYMIl8yXDCtcrT8JrdA==
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-repeat-style@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-repeat-style/-/postcss-normalize-repeat-style-4.0.2.tgz#c4ebbc289f3991a028d44751cbdd11918b17910c"
+  integrity sha512-qvigdYYMpSuoFs3Is/f5nHdRLJN/ITA7huIoCyqqENJe9PvPmLhNLMu7QTjPdtnVf6OcYYO5SHonx4+fbJE1+Q==
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    cssnano-util-get-match "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-string@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-string/-/postcss-normalize-string-4.0.2.tgz#cd44c40ab07a0c7a36dc5e99aace1eca4ec2690c"
+  integrity sha512-RrERod97Dnwqq49WNz8qo66ps0swYZDSb6rM57kN2J+aoyEAJfZ6bMx0sx/F9TIEX0xthPGCmeyiam/jXif0eA==
+  dependencies:
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-timing-functions@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-timing-functions/-/postcss-normalize-timing-functions-4.0.2.tgz#8e009ca2a3949cdaf8ad23e6b6ab99cb5e7d28d9"
+  integrity sha512-acwJY95edP762e++00Ehq9L4sZCEcOPyaHwoaFOhIwWCDfik6YvqsYNxckee65JHLKzuNSSmAdxwD2Cud1Z54A==
+  dependencies:
+    cssnano-util-get-match "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-normalize-unicode@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-unicode/-/postcss-normalize-unicode-4.0.1.tgz#841bd48fdcf3019ad4baa7493a3d363b52ae1cfb"
+  integrity sha512-od18Uq2wCYn+vZ/qCOeutvHjB5jm57ToxRaMeNuf0nWVHaP9Hua56QyMF6fs/4FSUnVIw0CBPsU0K4LnBPwYwg==
   dependencies:
-    postcss "^5.0.5"
+    browserslist "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
 
-postcss-normalize-url@^3.0.7:
-  version "3.0.8"
-  resolved "https://registry.yarnpkg.com/postcss-normalize-url/-/postcss-normalize-url-3.0.8.tgz#108f74b3f2fcdaf891a2ffa3ea4592279fc78222"
+postcss-normalize-url@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-url/-/postcss-normalize-url-4.0.1.tgz#10e437f86bc7c7e58f7b9652ed878daaa95faae1"
+  integrity sha512-p5oVaF4+IHwu7VpMan/SSpmpYxcJMtkGppYf0VbdH5B6hN8YNmVyJLuY9FmLQTzY3fag5ESUUHDqM+heid0UVA==
   dependencies:
     is-absolute-url "^2.0.0"
-    normalize-url "^1.4.0"
-    postcss "^5.0.14"
-    postcss-value-parser "^3.2.3"
-
-postcss-ordered-values@^2.1.0:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/postcss-ordered-values/-/postcss-ordered-values-2.2.3.tgz#eec6c2a67b6c412a8db2042e77fe8da43f95c11d"
-  dependencies:
-    postcss "^5.0.4"
-    postcss-value-parser "^3.0.1"
+    normalize-url "^3.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
 
-postcss-reduce-idents@^2.2.2:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/postcss-reduce-idents/-/postcss-reduce-idents-2.4.0.tgz#c2c6d20cc958284f6abfbe63f7609bf409059ad3"
+postcss-normalize-whitespace@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-normalize-whitespace/-/postcss-normalize-whitespace-4.0.2.tgz#bf1d4070fe4fcea87d1348e825d8cc0c5faa7d82"
+  integrity sha512-tO8QIgrsI3p95r8fyqKV+ufKlSHh9hMJqACqbv2XknufqEDhDvbguXGBBqxw9nsQoXWf0qOqppziKJKHMD4GtA==
   dependencies:
-    postcss "^5.0.4"
-    postcss-value-parser "^3.0.2"
-
-postcss-reduce-initial@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/postcss-reduce-initial/-/postcss-reduce-initial-1.0.1.tgz#68f80695f045d08263a879ad240df8dd64f644ea"
-  dependencies:
-    postcss "^5.0.4"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
 
-postcss-reduce-transforms@^1.0.3:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/postcss-reduce-transforms/-/postcss-reduce-transforms-1.0.4.tgz#ff76f4d8212437b31c298a42d2e1444025771ae1"
+postcss-ordered-values@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/postcss-ordered-values/-/postcss-ordered-values-4.1.2.tgz#0cf75c820ec7d5c4d280189559e0b571ebac0eee"
+  integrity sha512-2fCObh5UanxvSxeXrtLtlwVThBvHn6MQcu4ksNT2tsaV2Fg76R2CV98W7wNSlX+5/pFwEyaDwKLLoEV7uRybAw==
+  dependencies:
+    cssnano-util-get-arguments "^4.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-reduce-initial@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-initial/-/postcss-reduce-initial-4.0.3.tgz#7fd42ebea5e9c814609639e2c2e84ae270ba48df"
+  integrity sha512-gKWmR5aUulSjbzOfD9AlJiHCGH6AEVLaM0AV+aSioxUDd16qXP1PCh8d1/BGVvpdWn8k/HiK7n6TjeoXN1F7DA==
+  dependencies:
+    browserslist "^4.0.0"
+    caniuse-api "^3.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+
+postcss-reduce-transforms@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/postcss-reduce-transforms/-/postcss-reduce-transforms-4.0.2.tgz#17efa405eacc6e07be3414a5ca2d1074681d4e29"
+  integrity sha512-EEVig1Q2QJ4ELpJXMZR8Vt5DQx8/mo+dGWSR7vWXqcob2gQLyQGsionYcGKATXvQzMPn6DSN1vTN7yFximdIAg==
+  dependencies:
+    cssnano-util-get-match "^4.0.0"
+    has "^1.0.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+
+postcss-selector-parser@^3.0.0:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-3.1.2.tgz#b310f5c4c0fdaf76f94902bbaa30db6aa84f5270"
+  integrity sha512-h7fJ/5uWuRVyOtkO45pnt1Ih40CEleeyCHzipqAZO2e5H20g25Y48uYnFUiShvY4rZWNJ/Bib/KVPmanaCtOhA==
   dependencies:
-    has "^1.0.1"
-    postcss "^5.0.8"
-    postcss-value-parser "^3.0.1"
+    dot-prop "^5.2.0"
+    indexes-of "^1.0.1"
+    uniq "^1.0.1"
 
-postcss-selector-parser@^2.0.0, postcss-selector-parser@^2.2.2:
-  version "2.2.3"
-  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-2.2.3.tgz#f9437788606c3c9acee16ffe8d8b16297f27bb90"
+postcss-selector-parser@^6.0.2:
+  version "6.0.4"
+  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-6.0.4.tgz#56075a1380a04604c38b063ea7767a129af5c2b3"
+  integrity sha512-gjMeXBempyInaBqpp8gODmwZ52WaYsVOsfr4L4lDQ7n3ncD6mEyySiDtgzCT+NYC0mmeOLvtsF8iaEf0YT6dBw==
   dependencies:
-    flatten "^1.0.2"
+    cssesc "^3.0.0"
     indexes-of "^1.0.1"
     uniq "^1.0.1"
+    util-deprecate "^1.0.2"
 
-postcss-svgo@^2.1.1:
-  version "2.1.6"
-  resolved "https://registry.yarnpkg.com/postcss-svgo/-/postcss-svgo-2.1.6.tgz#b6df18aa613b666e133f08adb5219c2684ac108d"
+postcss-svgo@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/postcss-svgo/-/postcss-svgo-4.0.3.tgz#343a2cdbac9505d416243d496f724f38894c941e"
+  integrity sha512-NoRbrcMWTtUghzuKSoIm6XV+sJdvZ7GZSc3wdBN0W19FTtp2ko8NqLsgoh/m9CzNhU3KLPvQmjIwtaNFkaFTvw==
   dependencies:
-    is-svg "^2.0.0"
-    postcss "^5.0.14"
-    postcss-value-parser "^3.2.3"
-    svgo "^0.7.0"
+    postcss "^7.0.0"
+    postcss-value-parser "^3.0.0"
+    svgo "^1.0.0"
 
-postcss-unique-selectors@^2.0.2:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/postcss-unique-selectors/-/postcss-unique-selectors-2.0.2.tgz#981d57d29ddcb33e7b1dfe1fd43b8649f933ca1d"
+postcss-unique-selectors@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/postcss-unique-selectors/-/postcss-unique-selectors-4.0.1.tgz#9446911f3289bfd64c6d680f073c03b1f9ee4bac"
+  integrity sha512-+JanVaryLo9QwZjKrmJgkI4Fn8SBgRO6WXQBJi7KiAVPlmxikB5Jzc4EvXMT2H0/m0RjrVVm9rGNhZddm/8Spg==
   dependencies:
-    alphanum-sort "^1.0.1"
-    postcss "^5.0.4"
+    alphanum-sort "^1.0.0"
+    postcss "^7.0.0"
     uniqs "^2.0.0"
 
-postcss-value-parser@^3.0.1, postcss-value-parser@^3.0.2, postcss-value-parser@^3.1.1, postcss-value-parser@^3.1.2, postcss-value-parser@^3.2.3, postcss-value-parser@^3.3.0:
+postcss-value-parser@^3.0.0:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-3.3.1.tgz#9ff822547e2893213cf1c30efa51ac5fd1ba8281"
+  integrity sha512-pISE66AbVkp4fDQ7VHBwRNXzAAKJjw4Vw7nWI/+Q3vuly7SNfgYXvm6i5IgFylHGK5sP/xHAbB7N49OS4gWNyQ==
+
+postcss-value-parser@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-3.3.0.tgz#87f38f9f18f774a4ab4c8a232f5c5ce8872a9d15"
 
-postcss-zindex@^2.0.1:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/postcss-zindex/-/postcss-zindex-2.2.0.tgz#d2109ddc055b91af67fc4cb3b025946639d2af22"
-  dependencies:
-    has "^1.0.1"
-    postcss "^5.0.4"
-    uniqs "^2.0.0"
+postcss-value-parser@^4.0.2:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/postcss-value-parser/-/postcss-value-parser-4.1.0.tgz#443f6a20ced6481a2bda4fa8532a6e55d789a2cb"
+  integrity sha512-97DXOFbQJhk71ne5/Mt6cOu6yxsSfM0QGQyl0L25Gca4yGWEGJaig7l7gbCX623VqTBNGLRLaVUCnNkcedlRSQ==
 
-postcss@^5.0.10, postcss@^5.0.11, postcss@^5.0.12, postcss@^5.0.13, postcss@^5.0.14, postcss@^5.0.16, postcss@^5.0.2, postcss@^5.0.4, postcss@^5.0.5, postcss@^5.0.6, postcss@^5.0.8, postcss@^5.2.15:
+postcss@^5.0.14, postcss@^5.0.4, postcss@^5.0.6:
   version "5.2.16"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-5.2.16.tgz#732b3100000f9ff8379a48a53839ed097376ad57"
   dependencies:
@@ -2046,14 +2513,19 @@ postcss@^6.0.1:
     source-map "^0.5.6"
     supports-color "^3.2.3"
 
+postcss@^7.0.0, postcss@^7.0.1, postcss@^7.0.27:
+  version "7.0.35"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-7.0.35.tgz#d2be00b998f7f211d8a276974079f2e92b970e24"
+  integrity sha512-3QT8bBJeX/S5zKTTjTCIjRF3If4avAT6kqxcASlTWEtAFCb9NH0OUxNDfgZSWdP5fJnBYCMEWkIFfWeugjzYMg==
+  dependencies:
+    chalk "^2.4.2"
+    source-map "^0.6.1"
+    supports-color "^6.1.0"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
-prepend-http@^1.0.0:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-1.0.4.tgz#d4f4562b0ce3696e41ac52d0e002e57a635dc6dc"
-
 process-nextick-args@~1.0.6:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
@@ -2074,13 +2546,6 @@ qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
-query-string@^4.1.0:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/query-string/-/query-string-4.3.2.tgz#ec0fd765f58a50031a3968c2431386f8947a5cdd"
-  dependencies:
-    object-assign "^4.1.0"
-    strict-uri-encode "^1.0.0"
-
 read-pkg-up@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
@@ -2129,20 +2594,6 @@ redent@^1.0.0:
     indent-string "^2.1.0"
     strip-indent "^1.0.1"
 
-reduce-css-calc@^1.2.6:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/reduce-css-calc/-/reduce-css-calc-1.3.0.tgz#747c914e049614a4c9cfbba629871ad1d2927716"
-  dependencies:
-    balanced-match "^0.4.2"
-    math-expression-evaluator "^1.2.14"
-    reduce-function-call "^1.0.1"
-
-reduce-function-call@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/reduce-function-call/-/reduce-function-call-1.0.2.tgz#5a200bf92e0e37751752fe45b0ab330fd4b6be99"
-  dependencies:
-    balanced-match "^0.4.2"
-
 regenerate@^1.2.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.3.2.tgz#d1941c67bad437e1be76433add5b385f95b19260"
@@ -2221,6 +2672,11 @@ resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
 
+resolve-from@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
+  integrity sha1-six699nWiBvItuZTM17rywoYh0g=
+
 resolve@1.1.x, resolve@^1.1.6:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
@@ -2232,6 +2688,16 @@ restore-cursor@^1.0.1:
     exit-hook "^1.0.0"
     onetime "^1.0.0"
 
+rgb-regex@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/rgb-regex/-/rgb-regex-1.0.1.tgz#c0e0d6882df0e23be254a475e8edd41915feaeb1"
+  integrity sha1-wODWiC3w4jviVKR16O3UGRX+rrE=
+
+rgba-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/rgba-regex/-/rgba-regex-1.0.0.tgz#43374e2e2ca0968b0ef1523460b7d730ff22eeb3"
+  integrity sha1-QzdOLiyglosO8VI0YLfXMP8i7rM=
+
 right-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
@@ -2264,9 +2730,10 @@ safe-buffer@^5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.0.1.tgz#d263ca54696cd8a306b5ca6551e92de57918fbe7"
 
-sax@~1.2.1:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.2.tgz#fd8631a23bc7826bef5d871bdb87378c95647828"
+sax@~1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
+  integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
 "semver@2 || 3 || 4 || 5", semver@^5.0.1, semver@^5.1.0:
   version "5.3.0"
@@ -2326,6 +2793,13 @@ signal-exit@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
+simple-swizzle@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/simple-swizzle/-/simple-swizzle-0.2.2.tgz#a4da6b635ffcccca33f70d17cb92592de95e557a"
+  integrity sha1-pNprY1/8zMoz9w0Xy5JZLeleVXo=
+  dependencies:
+    is-arrayish "^0.3.1"
+
 slice-ansi@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
@@ -2336,15 +2810,10 @@ sntp@1.x.x:
   dependencies:
     hoek "2.x.x"
 
-sort-keys@^1.0.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-1.1.2.tgz#441b6d4d346798f1b4e49e8920adfba0e543f9ad"
-  dependencies:
-    is-plain-obj "^1.0.0"
-
-source-list-map@^0.1.7:
-  version "0.1.8"
-  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-0.1.8.tgz#c550b2ab5427f6b3f21f5afead88c4f5587b2106"
+source-list-map@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
+  integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
 
 source-map@^0.4.4:
   version "0.4.4"
@@ -2352,10 +2821,15 @@ source-map@^0.4.4:
   dependencies:
     amdefine ">=0.0.4"
 
-source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.1:
+source-map@^0.5.6, source-map@~0.5.1:
   version "0.5.6"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
 
+source-map@^0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+  integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
+
 source-map@~0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
@@ -2407,6 +2881,11 @@ sshpk@^1.7.0:
     jsbn "~0.1.0"
     tweetnacl "~0.14.0"
 
+stable@^0.1.8:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
+  integrity sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w==
+
 standard-version@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/standard-version/-/standard-version-4.0.0.tgz#e578cefd43ab7b02944bd7569525052eac1b9787"
@@ -2420,10 +2899,6 @@ standard-version@^4.0.0:
     semver "^5.1.0"
     yargs "^6.0.0"
 
-strict-uri-encode@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
-
 string-width@^1.0.1, string-width@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
@@ -2439,6 +2914,22 @@ string-width@^2.0.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^3.0.0"
 
+string.prototype.trimend@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/string.prototype.trimend/-/string.prototype.trimend-1.0.4.tgz#e75ae90c2942c63504686c18b287b4a0b1a45f80"
+  integrity sha512-y9xCjw1P23Awk8EvTpcyL2NIr1j7wJ39f+k6lvRnSMz+mz9CGz9NYPelDk42kOz6+ql8xjfK8oYzy3jAP5QU5A==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
+string.prototype.trimstart@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/string.prototype.trimstart/-/string.prototype.trimstart-1.0.4.tgz#b36399af4ab2999b4c9c648bd7a3fb2bb26feeed"
+  integrity sha512-jh6e984OBfvxS50tdY2nRZnoC5/mLFKOREQfw8t5yytkoUsJRNxvI/E39qu1sD0OtWI3OC0XgKSmcWwziwYuZw==
+  dependencies:
+    call-bind "^1.0.2"
+    define-properties "^1.1.3"
+
 string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
@@ -2473,6 +2964,15 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
+stylehacks@^4.0.0:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/stylehacks/-/stylehacks-4.0.3.tgz#6718fcaf4d1e07d8a1318690881e8d96726a71d5"
+  integrity sha512-7GlLk9JwlElY4Y6a/rmbH2MhVlTyVmiJd1PfTCqFaIBEGMYNsrO/v3SeGTdhBThLg4Z+NbOk/qFMwCa+J+3p/g==
+  dependencies:
+    browserslist "^4.0.0"
+    postcss "^7.0.0"
+    postcss-selector-parser "^3.0.0"
+
 supports-color@3.1.2:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.1.2.tgz#72a262894d9d408b956ca05ff37b2ed8a6e2a2d5"
@@ -2489,17 +2989,38 @@ supports-color@^3.1.0, supports-color@^3.2.3:
   dependencies:
     has-flag "^1.0.0"
 
-svgo@^0.7.0:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/svgo/-/svgo-0.7.2.tgz#9f5772413952135c6fefbf40afe6a4faa88b4bb5"
+supports-color@^5.3.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
   dependencies:
-    coa "~1.0.1"
-    colors "~1.1.2"
-    csso "~2.3.1"
-    js-yaml "~3.7.0"
+    has-flag "^3.0.0"
+
+supports-color@^6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-6.1.0.tgz#0764abc69c63d5ac842dd4867e8d025e880df8f3"
+  integrity sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==
+  dependencies:
+    has-flag "^3.0.0"
+
+svgo@^1.0.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/svgo/-/svgo-1.3.2.tgz#b6dc511c063346c9e415b81e43401145b96d4167"
+  integrity sha512-yhy/sQYxR5BkC98CY7o31VGsg014AKLEPxdfhora76l36hD9Rdy5NZA/Ocn6yayNPgSamYdtX2rFJdcv07AYVw==
+  dependencies:
+    chalk "^2.4.1"
+    coa "^2.0.2"
+    css-select "^2.0.0"
+    css-select-base-adapter "^0.1.1"
+    css-tree "1.0.0-alpha.37"
+    csso "^4.0.2"
+    js-yaml "^3.13.1"
     mkdirp "~0.5.1"
-    sax "~1.2.1"
-    whet.extend "~0.9.9"
+    object.values "^1.1.0"
+    sax "~1.2.4"
+    stable "^0.1.8"
+    unquote "~1.1.1"
+    util.promisify "~1.0.0"
 
 table@^3.7.8:
   version "3.8.3"
@@ -2537,6 +3058,11 @@ through@2, "through@>=2.2.7 <3", through@^2.3.6:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
+timsort@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/timsort/-/timsort-0.3.0.tgz#405411a8e7e6339fe64db9a234de11dc31e02bd4"
+  integrity sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q=
+
 tough-cookie@~2.3.0:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.2.tgz#f081f76e4c85720e6c37a5faced737150d84072a"
@@ -2587,20 +3113,29 @@ uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
 
+unbox-primitive@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/unbox-primitive/-/unbox-primitive-1.0.1.tgz#085e215625ec3162574dc8859abee78a59b14471"
+  integrity sha512-tZU/3NqK3dA5gpE1KtyiJUrEB0lxnGkMFHptJ7q6ewdZ8s12QrODwNbhIJStmJkd1QDXa1NRA8aF2A1zk/Ypyw==
+  dependencies:
+    function-bind "^1.1.1"
+    has-bigints "^1.0.1"
+    has-symbols "^1.0.2"
+    which-boxed-primitive "^1.0.2"
+
 uniq@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/uniq/-/uniq-1.0.1.tgz#b31c5ae8254844a3a8281541ce2b04b865a734ff"
 
-uniqid@^4.0.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/uniqid/-/uniqid-4.1.1.tgz#89220ddf6b751ae52b5f72484863528596bb84c1"
-  dependencies:
-    macaddress "^0.2.8"
-
 uniqs@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/uniqs/-/uniqs-2.0.0.tgz#ffede4b36b25290696e6e165d4a59edb998e6b02"
 
+unquote@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/unquote/-/unquote-1.1.1.tgz#8fded7324ec6e88a0ff8b905e7c098cdc086d544"
+  integrity sha1-j97XMk7G6IoP+LkF58CYzcCG1UQ=
+
 urlgrey@>=0.4.0:
   version "0.4.4"
   resolved "https://registry.yarnpkg.com/urlgrey/-/urlgrey-0.4.4.tgz#892fe95960805e85519f1cd4389f2cb4cbb7652f"
@@ -2611,10 +3146,20 @@ user-home@^2.0.0:
   dependencies:
     os-homedir "^1.0.0"
 
-util-deprecate@~1.0.1:
+util-deprecate@^1.0.2, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
+util.promisify@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/util.promisify/-/util.promisify-1.0.1.tgz#6baf7774b80eeb0f7520d8b81d07982a59abbaee"
+  integrity sha512-g9JpC/3He3bm38zsLupWryXHoEcS22YHthuPQSJdMy6KNrzIRzWqcsHzD/WUnqe45whVou4VIsPew37DoXWNrA==
+  dependencies:
+    define-properties "^1.1.3"
+    es-abstract "^1.17.2"
+    has-symbols "^1.0.1"
+    object.getownpropertydescriptors "^2.1.0"
+
 uuid@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.0.1.tgz#6544bba2dfda8c1cf17e629a3a305e2bb1fee6c1"
@@ -2636,9 +3181,16 @@ verror@1.3.6:
   dependencies:
     extsprintf "1.0.2"
 
-whet.extend@~0.9.9:
-  version "0.9.9"
-  resolved "https://registry.yarnpkg.com/whet.extend/-/whet.extend-0.9.9.tgz#f877d5bf648c97e5aa542fadc16d6a259b9c11a1"
+which-boxed-primitive@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/which-boxed-primitive/-/which-boxed-primitive-1.0.2.tgz#13757bc89b209b049fe5d86430e21cf40a89a8e6"
+  integrity sha512-bwZdv0AKLpplFY2KZRX6TvyuN7ojjr7lwkg6ml0roIy9YeuSr7JS372qlNW18UQYzgYK9ziGcerWqZOmEn9VNg==
+  dependencies:
+    is-bigint "^1.0.1"
+    is-boolean-object "^1.1.0"
+    is-number-object "^1.0.4"
+    is-string "^1.0.5"
+    is-symbol "^1.0.3"
 
 which-module@^1.0.0:
   version "1.0.0"