[xulrunner/f16] (4 commits) ...without system cairo

[Martin Stransky]

Summary of changes:

  7b2b7ae... Update to 12.0 (*)
  df71757... Added switch for system cairo (*)
  9d40849... removed already merged patches (*)
  07f2ed7... without system cairo (*)

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