Issue 330-tlr-1

In relation to issue 330-tlr-1 reported by Jose on behalf of Thomas Roessler

>* The spec sometimes mentions AbstractRequestType, and sometimes
> mentions RequestAbstractType (but obviously means the same type).
> These should be unified.

I confirm (although Thomas's text is clear) as discussed that this
discrepancy is only in the specification text, not the schema.

Regards
Tommy