Bump babel-preset-env from 1.6.1 to 1.7.0

Bumps [babel-preset-env](https://github.com/babel/babel) from 1.6.1 to 1.7.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Commits](https://github.com/babel/babel/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

yarn.lock

@@ -859,8 +859,8 @@ babel-polyfill@^6.26.0:
     regenerator-runtime "^0.10.5"
 
 babel-preset-env@^1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.6.1.tgz#a18b564cc9b9afdf4aae57ae3c1b0d99188e6f48"
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/babel-preset-env/-/babel-preset-env-1.7.0.tgz#dea79fa4ebeb883cd35dab07e260c1c9c04df77a"
   dependencies:
     babel-plugin-check-es2015-constants "^6.22.0"
     babel-plugin-syntax-trailing-function-commas "^6.22.0"
@@ -889,7 +889,7 @@ babel-preset-env@^1.6.1:
     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 "^2.1.2"
+    browserslist "^3.2.6"
     invariant "^2.2.2"
     semver "^5.3.0"
 
@@ -1046,13 +1046,6 @@ browser-resolve@^1.11.2:
   dependencies:
     resolve "1.1.7"
 
-browserslist@^2.1.2:
-  version "2.11.3"
-  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-2.11.3.tgz#fe36167aed1bbcde4827ebfe71347a2cc70b99b2"
-  dependencies:
-    caniuse-lite "^1.0.30000792"
-    electron-to-chromium "^1.3.30"
-
 browserslist@^3.2.6:
   version "3.2.6"
   resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-3.2.6.tgz#138a44d04a9af64443679191d041f28ce5b965d5"
@@ -1122,7 +1115,7 @@ camelcase@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
 
-caniuse-lite@^1.0.30000792, caniuse-lite@^1.0.30000830, caniuse-lite@^1.0.30000832:
+caniuse-lite@^1.0.30000830, caniuse-lite@^1.0.30000832:
   version "1.0.30000832"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30000832.tgz#22a277f1d623774cc9aea2f7c1a65cb1603c63b8"
 
@@ -1570,7 +1563,7 @@ ecc-jsbn@~0.1.1:
   dependencies:
     jsbn "~0.1.0"
 
-electron-to-chromium@^1.3.30, electron-to-chromium@^1.3.42:
+electron-to-chromium@^1.3.42:
   version "1.3.44"
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.44.tgz#ef6b150a60d523082388cadad88085ecd2fd4684"