chore(package): update babel-preset-env to version 1.4.0

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -27,7 +27,7 @@
   "dependencies": {},
   "devDependencies": {
     "babel-core": "~6.24.0",
-    "babel-preset-env": "~1.3.2",
+    "babel-preset-env": "~1.4.0",
     "babili": "~0.0.12",
     "babili-webpack-plugin": "~0.0.11",
     "http-server": "~0.9.0",