Because by default sed does not follow symlinks, the symlink to site-available/ttrs was actually replaced by a copy when disabling SSL
Fixed that by editing the original file.
- Now basing on image 'kdelfour/supervisor-docker'
- Cron script will check and update TT-RSS and all plugins on a daily basis automatically
- SSL/TLS encryption is off by default so that TT-RSS is running on port 80 by default now
- SSL/TLS can be enabled with setting "-e TTRSS_SSL_ENABLED=1"
- A lot of cleanups