[milter-greylist/epel7] (4 commits) ...Doc updates, preset support for EL-7 builds

[Paul Howarth]

Summary of changes:

  3bf53c8... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_Mass (*)
  cb50034... - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_M (*)
  461a052... Update to 4.5.12 (*)
  4a0c5ee... Doc updates, preset support for EL-7 builds (*)

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