Merge pull request #23 from gsandf/greenkeeper/ava-0.25.0

Update ava to the latest version 🚀

Author: blakek

package.json

@@ -32,7 +32,7 @@
     "pify": "^3.0.0"
   },
   "devDependencies": {
-    "ava": "^0.24.0",
+    "ava": "^0.25.0",
     "eslint": "^4.1.0",
     "eslint-config-gsandf": "^1.0.0"
   }