Add explicit support for static hosting of frontend files

[cipriancraciun]

Based on the current README, I believe that the UI can be served as via a static web server (like NGinx, LigHTTPd, etc.)

However it would be extremely useful if:

• as part of the releases on GitHub, there would be an archive including a pre-build variant of the resources; (this would eliminate the need to fiddle with the NodeJS build environment;)
• update the README to point to the archive, and how to quickly deploy the static files;