:tada: npm install electron --save-dev

We can [npm install electron](http://electron.atom.io/blog/2016/08/16/npm-install-electron) directly!  :tada:

package.json

@@ -23,6 +23,6 @@
   },
   "homepage": "https://github.com/electron/electron-quick-start#readme",
   "devDependencies": {
-    "electron-prebuilt": "^1.2.0"
+    "electron": "^1.3.4"
   }
 }