Update server/conf/nginx_apps.vhost.master, server/conf/nginx_vhost.conf.master, server/conf/vhost.conf.master files

This reverts commit 4e3be3e3

The cipher suites are only set now for ISPConfig's own vhost, the intermediate security profile from Mozilla is used here.

Changed apache mod_proxy_fcgi configuration in vhost.conf.master from ProxyPassMatch to SetHandler so we can wrap the config directive it into <Directory ...> to avoid side affects with globally installed applications like phpmyadmin and roundcube.

After enabling "Rewrite HTTP to HTTPS" and "Lets Encrypt SSL" the RewriteCond and RewriteRule got on the same line, becourse of an failing newline