Handle the case where the content type is not specified on the request.
Handle the case where the content type is not specified on the request.

svn path=/trunk/eXist/; revision=15219

wolfgangmm/exist,patczar/exist,jessealama/exist,lcahlander/exist,opax/exist,dizzzz/exist,jensopetersen/exist,joewiz/exist,eXist-db/exist,RemiKoutcherawy/exist,eXist-db/exist,RemiKoutcherawy/exist,zwobit/exist,wshager/exist,MjAbuz/exist,wshager/exist,patczar/exist,dizzzz/exist,opax/exist,wshager/exist,ljo/exist,joewiz/exist,lcahlander/exist,lcahlander/exist,jessealama/exist,adamretter/exist,adamretter/exist,windauer/exist,shabanovd/exist,jensopetersen/exist,RemiKoutcherawy/exist,eXist-db/exist,windauer/exist,dizzzz/exist,zwobit/exist,MjAbuz/exist,windauer/exist,ambs/exist,ljo/exist,eXist-db/exist,olvidalo/exist,adamretter/exist,adamretter/exist,lcahlander/exist,hungerburg/exist,ljo/exist,dizzzz/exist,kohsah/exist,patczar/exist,kohsah/exist,ambs/exist,opax/exist,wolfgangmm/exist,RemiKoutcherawy/exist,shabanovd/exist,wshager/exist,eXist-db/exist,wolfgangmm/exist,kohsah/exist,lcahlander/exist,wolfgangmm/exist,jensopetersen/exist,hungerburg/exist,joewiz/exist,joewiz/exist,ljo/exist,shabanovd/exist,patczar/exist,shabanovd/exist,jensopetersen/exist,wshager/exist,MjAbuz/exist,zwobit/exist,joewiz/exist,zwobit/exist,MjAbuz/exist,opax/exist,wolfgangmm/exist,windauer/exist,wolfgangmm/exist,ambs/exist,ambs/exist,ambs/exist,MjAbuz/exist,olvidalo/exist,zwobit/exist,shabanovd/exist,MjAbuz/exist,lcahlander/exist,jensopetersen/exist,RemiKoutcherawy/exist,dizzzz/exist,hungerburg/exist,RemiKoutcherawy/exist,opax/exist,shabanovd/exist,kohsah/exist,olvidalo/exist,eXist-db/exist,jessealama/exist,patczar/exist,windauer/exist,olvidalo/exist,adamretter/exist,zwobit/exist,jessealama/exist,ljo/exist,joewiz/exist,hungerburg/exist,dizzzz/exist,olvidalo/exist,wshager/exist,windauer/exist,jessealama/exist,kohsah/exist,adamretter/exist,kohsah/exist,ljo/exist,jensopetersen/exist,hungerburg/exist,ambs/exist,jessealama/exist,patczar/exist