Wrong group owner of FPM Socket on Centos with NGINX
## short description
ISPConfig creates on CentOS (tested on 6 and 7 latest) systems with NGINX 1.10.2 running, for some reason fpm confs with the apache group instead of clientX which leads to unaccessible socket files and the website can't be accessed anymore.
Example:
0 srw-rw---- 1 web9 apache 0 17. Okt 15:03 /var/lib/php5-fpm/web9.sock
## correct behaviour
After reverting this commit: https://git.ispconfig.org/ispconfig/ispconfig3/commit/0dfb2d97da6b25c20c8de3d766c81077837f7387 the fpm conf is being created correctly with the correct group.
issue