changed xs:import of xml.xsd based on example at http://www.w3.org/TR/xml-i18n-bp/#generic-includeinxsd. Schema previously failed to validate, after this change the schema validates as OK.
--- a/xml/schema/prov.xsd Tue Aug 14 15:39:23 2012 -0400
+++ b/xml/schema/prov.xsd Wed Aug 15 14:25:29 2012 -0600
@@ -29,7 +29,7 @@
<xs:import namespace="http://www.w3.org/1999/xhtml/datatypes/" />
<xs:import namespace="http://www.w3.org/XML/1998/namespace"
- schemaLocation="xml.xsd"/>
+ schemaLocation="http://www.w3.org/2001/xml.xsd"/>
<!-- Component 1 -->