Fixed bug where requesting a non-existent attribute value by name wreaked havoc. -valueForAttributeNamed now returns nil and an NSError when there is no data for a given named attribute.
Fixed bug where requesting a non-existent attribute value by name wreaked havoc. -valueForAttributeNamed now returns nil and an NSError when there is no data for a given named attribute.

billgarrison/SOExtendedAttributes,billgarrison/SOExtendedAttributes