Version 1.8 of xmltask is out now. This version contains various bug
fixes and a modified logging system resulting in less verbose output.

Tested againt Ant 1.5 / 1.6b

See http://www.oopsconsultancy.com/software/xmltask.html

xmltask provides the facility for automatically editing XML files as
part of an Ant build. Unlike the standard filter task provided with Ant,
it is XML-sensitive, but doesn't require you to define XSLTs.