edited versions of HTTP and Content

Hi group,

please find attached the versions of HTTP-in-RDF and Content-in-RDF 
including the changes from yesterday's telcon. I also added some 
"changes to last published document".

-- 
Johannes Koch
Fraunhofer Institute for Applied Information Technology FIT
Web Compliance Center
Schloss Birlinghoven, D-53757 Sankt Augustin, Germany
Phone: +49-2241-142628    Fax: +49-2241-142065