2009-08-19  Jérémie Laval  <jeremie.laval@gmail.com>

	* BlockingCollection.cs: Rewrite to use a transaction id
	based approach. Ported to 4.0 API. Fix GetConsumingEnumerable.

2009-08-11  Jérémie Laval  <jeremie.laval@gmail.com>

	* BlockingCollection.cs: New addition.