Direction: Constraints

Given the debates we've had about the constraints/capabilities 
functionality, the
clear need many see for it, and the proposal that Dan Burnett posted
to the mailing list on April 23 and the debate that has followed it,
the Chairs declare that we have a reasonable consensus that moving
forward with this specification is the right thing to do.

The chairs are therefore asking the editors to incorporate this
proposal in the current documents.

Of course, suggestions for improvements to this API are always welcome.

         Harald and Stefan, speaking as chairs