[httpd/f21] (9 commits) ...Revert "increase suexec minimum acceptable uid/gid to 1000 (#1136391)"

[Jan Kaluža]

Summary of changes:

  92ee9cf... set vstring based on /etc/os-release (Pat Riehecky, #111453 (*)
  3693038... use KillMode=mixed in httpd.service (#1135122) (*)
  b430bfe... fix hostname requirement and conflict with openssl-libs (*)
  46346fa... increase suexec minimum acceptable uid/gid to 1000 (#113639 (*)
  5d7dedd... use NoDelay and DeferAcceptSec in httpd.socket (*)
  8c01244... require apr-util 1.5.x (*)
  af9996c... core: fix bypassing of mod_headers rules via chunked reques (*)
  f6d3ddf... Merge with master
  7c33ed0... Revert "increase suexec minimum acceptable uid/gid to 1000 

(*) This commit already existed in another branch; no separate mail sent