move cross-env to dev

Author: mydearxym

package.json

@@ -79,7 +79,6 @@
   },
   "dependencies": {
     "accepts": "^1.3.4",
-    "cross-env": "^5.0.5",
     "debug": "^3.0.1",
     "glob": "^7.1.2",
     "intl": "^1.2.5",
@@ -114,6 +113,7 @@
     "babel-plugin-transform-decorators-legacy": "1.3.4",
     "chalk": "^2.1.0",
     "coveralls": "^2.13.1",
+    "cross-env": "^5.0.5",
     "enzyme": "^2.9.1",
     "eslint": "^4.6.1",
     "eslint-config-airbnb": "^15.1.0",