chore(package): update standard to version 12.0.0

Closes #46

Author: greenkeeper[bot]

package.json

@@ -26,7 +26,7 @@
     "reshape": "^0.4.2",
     "rewire": "^3.0.0",
     "snazzy": "^7.0.0",
-    "standard": "^10.0.3",
+    "standard": "^12.0.0",
     "sugarml": "^0.7.0"
   },
   "engines": {