2004-08-30 Sebastien Pouliot <sebastien@ximian.com>

2004-08-30  Sebastien Pouliot  <sebastien@ximian.com>

	* NamedPermissionSet.cs: Fixed Description in copies, GetHashCode and
	Equals (for NET_2_0). Fixed handling of null Name when deserialized
	from XML.
	* PermissionSet.cs: AddPermission now unions permissions of the same
	type. CopyTo throw (most) exceptions only if there are items in the
	set. Implemented Demand (but without support for Assert, Deny and
	PermitOnly). Fixed deserialized from XML when no class is specified.
	Started implementation of ConvertPermissionSet (error cases). Fixed
	Intersect to be compatible (including bugs like FDBK14612) with MS.
	RemovePermission now compatible with MS (bug? FDBK14622). Fixed Union
	to work with permissions that do not implement IUnrestrictedPermission.

svn path=/trunk/mcs/; revision=33061