2010-11-30  Atsushi Eno  <atsushi@ximian.com>

	Support attribute validation.

2010-11-29  Atsushi Eno  <atsushi@ximian.com>

	Implemented XDocument.Validate().

2010-05-28  Atsushi Enomoto  <atsushi@ximian.com>

	* ExtensionsTest.cs :
	  New tests (not working yet), by Stefan Prutianu.
