sync rawhide and EPEL7 spec files again
    systemd service reload now checks config file (rhbz#1565377)
    drop nginx requirement on nginx-all-modules (rhbz#1708799)
    let nginx handle log creation on logrotate (rhbz#1683388)
    have log directory owned by root (rhbz#1390183, CVE-2016-1247)
    remove obsolete --with-ipv6 (src PR#8)
    correction: pcre2 is actually not supported by nginx, reintroduce pcre