phingofficial/phing — pull request #275 by cweiske (2014-03-11 19:48:02+00:00)
Title: Use parent class add*() method if the task has no creator/adder for the class itself.  

This allows using PearPackageFileSet with all tasks that have a addFileSet() method.

Also replace `createFileSet()` with `addFileSet()` wherever possible.