[mate-control-center/f19] (6 commits) ...Merge branch 'master' into f19

[Dan Mashal]

Summary of changes:

  5a8aa3c... update spec file and pump version to latest upstream releas (*)
  a7379d1... upload 1.5.5 release (*)
  6d0135d... bump version in spec file (*)
  e17777a... update spec file, rebuild against new mate-window-manager (*)
  c0f7404... Update to latest 1.6.0 stable release. (*)
  3bf300f... Merge branch 'master' into f19

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