Upgrade find-cache-dir to 1.0 and cross-env to 5.0 (#457)

Author: danez

package.json

@@ -10,7 +10,7 @@
     "node": ">=4"
   },
   "dependencies": {
-    "find-cache-dir": "^0.1.1",
+    "find-cache-dir": "^1.0.0",
     "loader-utils": "^1.0.2",
     "mkdirp": "^0.5.1"
   },
@@ -27,7 +27,7 @@
     "babel-plugin-react-intl": "^2.1.3",
     "babel-preset-env": "^1.2.0",
     "babel-register": "^6.18.0",
-    "cross-env": "^4.0.0",
+    "cross-env": "^5.0.0",
     "eslint": "^3.8.1",
     "eslint-config-babel": "^6.0.0",
     "eslint-plugin-flowtype": "^2.25.0",