chore(package): update standard to version 12.0.1

Closes #24

Author: greenkeeper[bot]

package.json

@@ -35,7 +35,7 @@
     "babel-jest": "^22.0.0",
     "babel-preset-es2015": "^6.24.0",
     "jest-cli": "^21.0.1",
-    "standard": "^10.0.3"
+    "standard": "^12.0.1"
   },
   "scripts": {
     "dev": "node server.js",