[xine-ui/f16] (5 commits) ...sync with upstream

[mjg]

Summary of changes:

  24c62cc... Rebuild for new libpng (*)
  c307f4b... fix build with libpng-1.5 (*)
  4dab125... - Rebuilt for https://fedoraproject.org/wiki/Fedora_17_Mass (*)
  6f3cab1... - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass (*)
  bb12ca6... sync with upstream

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