fix(package): update eslint-config-standard to version 7.0.3

Closes #2

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -9,7 +9,7 @@
     "sorting"
   ],
   "dependencies": {
-    "eslint-config-standard": "^6.2.0"
+    "eslint-config-standard": "^7.0.3"
   },
   "devDependencies": {
     "browserify": "^13.1.1",