chore(package): update eslint-config-xo to version 0.25.0

Closes #4

Author: greenkeeper[bot]

package.json

@@ -39,7 +39,7 @@
     "babel-plugin-angularjs-annotate": "^0.8.2",
     "eslint": "^4.19.1",
     "eslint-config-angular": "^0.5.0",
-    "eslint-config-xo": "^0.20.1",
+    "eslint-config-xo": "^0.25.0",
     "eslint-config-xo-space": "^0.18.0",
     "eslint-loader": "^2.0.0",
     "eslint-plugin-angular": "^3.3.0",