fix(package): update eslint-config-standard to version 13.0.1

Closes #10

Author: greenkeeper[bot]

package.json

@@ -13,7 +13,7 @@
     "ajv": "^5.2.2",
     "eslint": "^3.19.0",
     "eslint-config-airbnb-base": "^11.2.0",
-    "eslint-config-standard": "^10.2.1",
+    "eslint-config-standard": "^13.0.1",
     "eslint-plugin-import": "^2.7.0",
     "eslint-plugin-node": "^5.1.0",
     "eslint-plugin-promise": "^3.5.0",