[mingw-qt/f17] (7 commits) ...More patch updates for Qt 4.8.3

[Erik van Pienbroek]

Summary of changes:

  282d071... - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass (*)
  beb3400... Rebuild against latest libtiff (*)
  dd13e7c... Update to 4.8.3 (*)
  183dd18... Fix build regression in Qt 4.8.3 (upstream commit 57069f) (*)
  99ed015... Backported another upstream commit which resolves a build f (*)
  d10c5d2... Bump version number in one of the patches (*)
  51cc3bb... More patch updates for Qt 4.8.3 (*)

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