chore(package): update standard to version 14.3.4

Closes #207

Author: greenkeeper[bot]

package.json

@@ -41,7 +41,7 @@
     "documentation": "^8.0.0",
     "level-browserify": "^1.1.2",
     "nyc": "^12.0.2",
-    "standard": "11.0.1",
+    "standard": "14.3.4",
     "tape": "^4.9.1"
   }
 }