<1.0 bug> Protocol element's version attribute should not be FIXED

Section 7.6.6.1 is incorrect. The version 
attribute should not be fixed, as it is not consistent with the schema 
definition in Appendix D. Since the Protocol element is declared at the top 
level and is used in a number of different contexts, it is also not appropriate 
to declare Protocol to have a required version attribute either. Somehow, 
section 7.6.6.1 needs to be rephrased.

<element name="Protocol" type="tns:protocol.type"/>

<complexType name="protocol.type">
<simpleContent>
<extension base="tns:non-empty-string">
<attribute ref="tns:version"/>
</extension>
</simpleContent>
</complexType>

-Arvola