1. reduce default error_log severity to "notice" from implicit
default level of "error" (more verbosity by default).
2. remove "tcp_nodelay on" since "on" is the default setting.
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
Increased types_hash_max_size to 4096 in default config
Add gpg source verification
Add Recommends: logrotate
Drop location / from default config (rhbz#1564768)
Drop default_sever from default config (rhbz#1373822)
Signed-off-by: Felix Kaechele <heffer@fedoraproject.org>