[mate-power-manager] (6 commits) ...Add libmatekeyring-devel to BR

[Dan Mashal]

Summary of changes:

  0d0e535... Update to 1.5.2 add patch for suspend (*)
  2a56b0f... Merge branch 'f18' into f19 (*)
  bce3856... Update sources (*)
  67699c7... Update specfile (*)
  26c40e3... Update patch for 1.6.0 (*)
  ff6f0fc... Add libmatekeyring-devel to BR (*)

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