[mediawiki] (6 commits) ...Merge branch 'master' into f13

[Axel Thimm]

Summary of changes:

  ab0afe2... Initialize branch F-13 for mediawiki (*)
  001ec94... Update to 1.15.3. (*)
  970c46b... Update to 1.15.3. (take II) (*)
  006b8ee... Update to 1.15.4, fixes CVE-2010-1647 CVE-2010-1648, also f (*)
  1d469df... dist-git conversion (*)
  404c2d4... Merge branch 'master' into f13 (*)

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