Implemented rolling release support:

- 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

ttrss-nginx.conf

@@ -1,14 +1,14 @@
 server {
-    listen 443;
-    root /var/www;
+    listen                    443;
+    root                      /var/www/ttrss;
 
     ssl                       on;
-    ssl_certificate           /etc/ssl/certs/ttrss.cert;
+    ssl_certificate           /etc/ssl/certs/ttrss.crt;
     ssl_certificate_key       /etc/ssl/private/ttrss.key;
     ssl_protocols             TLSv1 TLSv1.1 TLSv1.2;
-    ssl_prefer_server_ciphers on; 
+    ssl_prefer_server_ciphers on;
     ssl_ciphers               "AES256+EECDH:AES256+EDH:!aNULL";
-    
+
     index index.php index.html;
 
     location / {