Feature/rdfa lite

Update RDFa to use RDFa Lite only, unless doRDFa is explicitly set to 1.1, in which it also outputs `@inlist` on editors and authors. Removes RDFa 1.0 support, adds specs and fixes bugs.

This should make the default doRDFa="lite" to generate HTML which will validate without warnings.
Why have you changed the reference from dcterms to dc?  I remember when we were doing this initially the DC people were pretty clear that they wanted us to migrate to using dcterms.