[freenx-server/f16] (6 commits) ...Migrate to systemd on F-16+ (#714446).

[Ville Skyttä]

Summary of changes:

  72c68e4... Build everything with %{optflags}. (*)
  9bbf149... Use %global instead of %define. (*)
  27938b0... Fix default CUPS config dir on Fedora and EL-6+. (*)
  aec99d0... Fix init script to actually clean up sessions and to enable (*)
  ae2c059... Clean up list of installed files. (*)
  1fbdb6e... Migrate to systemd on F-16+ (#714446). (*)

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