chore(package): update standard to version 12.0.0

Closes #89

Author: greenkeeper[bot]

package.json

@@ -22,7 +22,7 @@
     "reshape-standard": "^3.3.0",
     "rimraf": "^2.6.2",
     "spike-core": "^2.2.0",
-    "standard": "^10.0.3"
+    "standard": "^12.0.0"
   },
   "engines": {
     "node": ">= 6.0.0"