[xen/f17] (2 commits) ...add patch from 4.1.3-rc2-pre to build on F17/8

[myoung]

Summary of changes:

  bbba229... make pygrub cope better with big files from guest (#818412  (*)
  000a7f3... add patch from 4.1.3-rc2-pre to build on F17/8 (*)

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