Avoid unpleasantness when viewing blog articles as http

src/freedombone

@@ -9103,7 +9103,7 @@ function install_blog {
 
   # blog settings
   cp /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini.example /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
-  sed -i "s|site.url.*|site.url = 'https://$FULLBLOG_DOMAIN_NAME'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
+  sed -i "s|site.url.*|site.url = '/'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
   sed -i "s|blog.title.*|blog.title = '$MY_BLOG_TITLE'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
   sed -i "s|blog.tagline.*|blog.tagline = '$MY_BLOG_SUBTITLE'|g" /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini
   sed -i 's|timezone.*|timezone = "Europe/London"|g' /var/www/$FULLBLOG_DOMAIN_NAME/htdocs/config/config.ini