upgrade csso and css-tree (#402)

package.json

@@ -24,8 +24,8 @@
   },
   "dependencies": {
     "cheerio": "1.0.0-rc.3",
-    "css-tree": "1.0.0-alpha.37",
-    "csso": "~4.0.2",
+    "css-tree": "1.0.0-alpha.39",
+    "csso": "4.0.3",
     "filesize": "^6.0.0",
     "minimist": "^1.2.0",
     "puppeteer": "^2.0.0"

yarn.lock

@@ -1222,25 +1222,25 @@ css-select@~1.2.0:
     domutils "1.5.1"
     nth-check "~1.0.1"
 
-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==
+css-tree@1.0.0-alpha.39:
+  version "1.0.0-alpha.39"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.0.0-alpha.39.tgz#2bff3ffe1bb3f776cf7eefd91ee5cba77a149eeb"
+  integrity sha512-7UvkEYgBAHRG9Nt980lYxjsTrCyHFN53ky3wVsDkiMdVqylqRt+Zc+jm5qw7/qyOvN2dHSYtX0e4MbCCExSvnA==
   dependencies:
-    mdn-data "2.0.4"
+    mdn-data "2.0.6"
     source-map "^0.6.1"
 
 css-what@2.1:
   version "2.1.3"
   resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
   integrity sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==
 
-csso@~4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/csso/-/csso-4.0.2.tgz#e5f81ab3a56b8eefb7f0092ce7279329f454de3d"
-  integrity sha512-kS7/oeNVXkHWxby5tHVxlhjizRCSv8QdU7hB2FpdAibDU8FjTAolhNjKNTiLzXtUrKT6HwClE81yXwEk1309wg==
+csso@4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/csso/-/csso-4.0.3.tgz#0d9985dc852c7cc2b2cacfbbe1079014d1a8e903"
+  integrity sha512-NL3spysxUkcrOgnpsT4Xdl2aiEiBG6bXswAABQVHcMrfjjBisFOKwLDOmf4wf32aPdcJws1zds2B0Rg+jqMyHQ==
   dependencies:
-    css-tree "1.0.0-alpha.37"
+    css-tree "1.0.0-alpha.39"
 
 cssom@^0.4.4:
   version "0.4.4"
@@ -2838,10 +2838,10 @@ map-visit@^1.0.0:
   dependencies:
     object-visit "^1.0.0"
 
-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==
+mdn-data@2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.6.tgz#852dc60fcaa5daa2e8cf6c9189c440ed3e042978"
+  integrity sha512-rQvjv71olwNHgiTbfPZFkJtjNMciWgswYeciZhtvWLO8bmX3TnhyA62I6sTWOyZssWHJJjY6/KiWwqQsWWsqOA==
 
 merge-stream@^2.0.0:
   version "2.0.0"