Bump browserslist. (#319)

package.json

@@ -49,7 +49,7 @@
     "babel-plugin-transform-es2015-unicode-regex": "^6.22.0",
     "babel-plugin-transform-exponentiation-operator": "^6.22.0",
     "babel-plugin-transform-regenerator": "^6.22.0",
-    "browserslist": "^1.4.0",
+    "browserslist": "^2.1.2",
     "invariant": "^2.2.2"
   },
   "devDependencies": {

yarn.lock

@@ -1073,11 +1073,12 @@ browser-stdout@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.0.tgz#f351d32969d32fa5d7a5567154263d928ae3bd1f"
 
-browserslist@^1.4.0:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-1.5.1.tgz#67c3f2a1a6ad174cd01d25d2362e6e6083b26986"
+browserslist@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-2.1.2.tgz#a9dd0791342dab019861c2dd1cd0fd5d83230d39"
   dependencies:
-    caniuse-db "^1.0.30000601"
+    caniuse-lite "^1.0.30000665"
+    electron-to-chromium "^1.3.9"
 
 buffer-shims@^1.0.0:
   version "1.0.0"
@@ -1113,9 +1114,9 @@ camelcase@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
 
-caniuse-db@^1.0.30000601:
-  version "1.0.30000602"
-  resolved "https://registry.yarnpkg.com/caniuse-db/-/caniuse-db-1.0.30000602.tgz#06b2cbfb6c3aeef7ddb18cd588043549ad1a2d4e"
+caniuse-lite@^1.0.30000665:
+  version "1.0.30000666"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000666.tgz#831b63247e24fa408e20c6c546c4173d27c5a1a5"
 
 caseless@~0.11.0:
   version "0.11.0"
@@ -1510,6 +1511,10 @@ electron-to-chromium@^1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.2.tgz#b8ce5c93b308db0e92f6d0435c46ddec8f6363ab"
 
+electron-to-chromium@^1.3.9:
+  version "1.3.9"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.9.tgz#db1cba2a26aebcca2f7f5b8b034554468609157d"
+
 entities@1.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/entities/-/entities-1.0.0.tgz#b2987aa3821347fcde642b24fdfc9e4fb712bf26"