Editorship announcement

[Tim Bray <Tim.Bray@xxxxxxx>]

<co-chair-mode>
As we get ready to buckle down on the Atom Publishing Protocol draft,  
we're doing some editor-shuffling.  With thanks to Rob Sayre for his  
excellent work up through protocol-04, we're shifting from Rob-and- 
Joe to Joe Gregorio and Bill de hÓra as co-editors of the Atom  
protocol draft.

 -Tim (on behalf of myself and Paul)
</co-chair-mode>