git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271536 13f79535-47bb-0310-9956-ffa450edef68

Submitted by:	Mark Griffiths <mark@chive.com>


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271502 13f79535-47bb-0310-9956-ffa450edef68

1. New tests for the DemuxOutputStream and parallel task
2. Fix for the DemuxOutputStream thread problem identified by Jon Skeet
3. Found additional bug where UnknownElement does not hand output and error
strings onto the real task

A little bit of checkstyling.

Hmmm, really should be in bed.


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@271501 13f79535-47bb-0310-9956-ffa450edef68