chore(package): update cross-env to version 3.2.3 (#16)

https://greenkeeper.io/

Author: chrishelgert

package.json

@@ -43,7 +43,7 @@
     "babel-plugin-transform-object-rest-spread": "^6.20.2",
     "babel-preset-es2015": "^6.18.0",
     "babel-preset-react": "^6.16.0",
-    "cross-env": "^3.1.4",
+    "cross-env": "^3.2.3",
     "eslint": "^3.15.0",
     "eslint-config-airbnb": "^14.1.0",
     "eslint-formatter-pretty": "1.1.0",