* stable-2.8
  Include qa/patch in Makefile
  Handle empty patches better
  Move message formatting functions to separate file
  Add optional ordering of QA patch files
  Allow multiple QA patches
  Refactor current patching code

Conflicts:
	Makefile.am (include all added files)
	qa/qa_cluster.py (trivial)

Signed-off-by: Thomas Thrainer <thomasth@google.com>
Reviewed-by: Helga Velroyen <helgav@google.com>