[openvswitch/f18] (7 commits) ...Merge branch 'f19' into f18

[Thomas Graf]

Summary of changes:

  31d9673... Enable PIE (#955181) (*)
  670ded5... Provide native systemd unit files (#818754) (*)
  c4c2eed... Merge branch 'f19' into f18
  c0541c7... Perl 5.18 rebuild (*)
  bb941f3... spec file fixes and keep local copy of sysconfig.template (*)
  7af1966... Fix typo (*)
  d23eb09... Merge branch 'f19' into f18

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