chore(package): update onchange to version 5.2.0

Closes #30

Author: greenkeeper[bot]

package.json

@@ -76,7 +76,7 @@
     "jest": "^21.0.0",
     "nodemon": "^1.9.0",
     "npm-run-all": "^4.0.1",
-    "onchange": "^3.0.2",
+    "onchange": "^5.2.0",
     "react": "^15.6.1",
     "react-router": "^4.2.0",
     "react-router-config": "^1.0.0-beta.4",