[mysql/f18] (6 commits) ...Merge branch 'master' into f18

[Honza Horak]

Summary of changes:

  e9d2b26... Clean up partially-created database files when mysql_instal (*)
  becf152... Update to MySQL 5.5.28; assorted minor packaging fixes (*)
  486d9d1... Add patch for CVE-2012-5611, and widen DH key length from 5 (*)
  6a15b9e... Rebase patches to not leave backup files when not applied s (*)
  c25e72f... Use --no-backup-if-mismatch to prevent including backup fil (*)
  efb23b0... Merge branch 'master' into f18

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