[bugfix] Allow "math" namespace to be overwritten (the math prefix has the same status as the fn prefix in XQ 3: predefined but may be overwritten).
[bugfix] Allow "math" namespace to be overwritten (the math prefix has the same status as the fn prefix in XQ 3: predefined but may be overwritten).

svn path=/trunk/eXist/; revision=18326

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