Re: [dita] DITA 1.1 issue 20: Extensible metadata attributes

I haven't thought a lot about this yet, but I was having
a discussion with some of our developers today who also
felt the need for extensible metadata attributes, and 
they felt the right way to do it was to have a separate
namespace for metadata attributes.  

Then the DITA schema could allow any attribute in
that namespace on any element, so it would be easy 
to add "profiling" attributes or other metadata.

paul