3.07
	+ added dispatcher class to the pipeline
	+ added Pipeline::Segment::Async class for asyncronous pipeline
	  segments.
	+ fixed a bug introduced in 3.06 that broke tests relying on
	  Pipeline::Segment::Tester.
	+ Transaction store is flagged at the beginning of a segment
	  dispatch, and the flag is removed at the end of a dispatch.
	+ Fixed a bug that meant the pipeline could not be dispatched twice.

3.06
	+ fixed production returning bug
	+ fixes bug reported by James Fitzgibbon regarding subclassing
	  pipeline stores
3.05
	+ thought of another test, exposed a bug, fixed it
3.04
	+ fixed a bug that was passing on indv. tests but
	  causing tests to fail under a make test.
3.03
	+ Added Error.pm to Makefile.PL
3.02
	+ Added DESTROY to cleanup Transaction store
	+ Applied patches from spurkis@cpan.org in 
		http://rt.cpan.org/Ticket/Display.html?id=2452
	+ Applied patches from spurkis@cpan.org in
		http://rt.cpan.org/Ticket/Display.html?id=2468