Enable Automatic Updates

Automatically detect the latest version on container start/install, and if on container start there's a newer version  available it will install that.
This determines the latest version from services running on my webserver which log into the plex website and read the PlexPass download/archive pages.  Source for those scripts can be provided if needed or if you would like to run it on your own server instead of mine.  It uses PHP and memcache.