[Zim/f16] (2 commits) ...Update to 0.57 (#807149, #826886)

[cheeselee]

Summary of changes:

  fa7f897... - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass (*)
  cd5064d... Update to 0.57 (#807149, #826886) (*)

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