[relax-ng] relaxng.rng bug

The RELAX NG schema for RELAX NG doesn't allow the param element to have any
attributes other than "name".  This conflicts with section 3 which allows
all RELAX NG elements to have common attributes (ns, datatypeLibrary and
foreign attributes).  I think:

              <element name="param">
                <attribute name="name">
                  <data type="NCName"/>
                </attribute>
                <text/>
              </element>

should be

              <element name="param">
                <attribute name="name">
                  <data type="NCName"/>
                </attribute>
                <ref name="common-atts"/>
                <text/>
              </element>


James