civicrm/civicrm-core — pull request #1275 by eileenmcnaughton (2013-07-29 21:17:43+00:00)
Title: CRM-12108 minor improvement - simplify ipn.php by putting logic in the

relevant classes (no logic behind the split, main is not an extension of baseIPN & it will fail just as happily this way & the other way :-)