build: Adds options.json to dist package

- Fixes #208

Author: joshwiens

package.json

@@ -43,7 +43,7 @@
   "scripts": {
     "start": "npm run build -- -w",
     "appveyor:test": "npm run test",
-    "build": "cross-env NODE_ENV=production babel src -d dist --ignore 'src/**/*.test.js'",
+    "build": "cross-env NODE_ENV=production babel src -d dist --ignore 'src/**/*.test.js' --copy-files",
     "clean": "del-cli dist",
     "lint": "eslint --cache src test",
     "lint-staged": "lint-staged",