Switch from electron-prebuilt to electron

bin/cmd.js

@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 
-var electron = require('electron-prebuilt')
+var electron = require('electron')
 var cp = require('child_process')
 var path = require('path')
 

bin/package.js

@@ -105,7 +105,7 @@ var all = {
   prune: true,
 
   // The Electron version with which the app is built (without the leading 'v')
-  version: require('electron-prebuilt/package.json').version
+  version: require('electron/package.json').version
 }
 
 var darwin = {