chore(package): update ava to version 1.1.0

Closes #105

Author: greenkeeper[bot]

package.json

@@ -15,7 +15,7 @@
     "when": "^3.7.8"
   },
   "devDependencies": {
-    "ava": "^0.25.0",
+    "ava": "^1.1.0",
     "coveralls": "^3.0.0",
     "dotenv": "^5.0.0",
     "nyc": "^11.4.1",