chore(package): update rimraf to version 2.5.4

https://greenkeeper.io/

package.json

@@ -210,7 +210,7 @@
     "react-transform-hmr": "1.0.4",
     "redux-devtools": "3.3.1",
     "require-uncached": "1.0.2",
-    "rimraf": "2.5.2",
+    "rimraf": "2.5.4",
     "sass-loader": "4.0.0",
     "semver": "5.3.0",
     "shelljs": "0.7.0",