[osis-core] annotateWork and annotateType

[Harry Plantinga]

> It seems that annotationWork and annotationType are a hold 
> over from an older time and that the attributes are no longer 
> needed because the preferred mechanism would be the 
> following: <p><reference osisRef="conf:IV.6.ii" 
> type="annotation" subtype="translation"/></p>

That really doesn't do the job.  The <p> is a container; it's
a much different matter to put an empty element inside a container
with the given attributes. What would it even mean -- that any 
element containing that empty reference element has those attributes?

The other issue is that that is an abuse of the <reference>
element, which has different semantics.

-Harry