RE: RDFS versioning

<- The RDFS spec states: "this specification recommends that a new namespace
<- URI should be declared whenever an RDF schema is changed." (Other than
<- confusing namespace URIs with schema URIs) this statement is a
<- rather silly
<- requirement.

Personally, I can't see a problem with this - if the schema changes, then it
becomes a different schema and so should have a different namespace URI. If
it's only a matter of comments, or even if there are significant changes but
it is backwards compatible, then this may not be necessary - note the use of
the word 'recommends'. The statement allows for common sense.

Cheers,
Danny.