Standalone updater

I'm suggesting an updater for standalone builds wherein it checks on a database if it's still up-to-date and if it's not, it will download the new standalone and delete the old one. Likewise, if there's some kind of modularity built in the standalone like say Asset Bundles, it would just download that instead of downloading all the file.

This helps in getting bug fixes get distributed much easily to users. It would be nice if there was a module/package for it.