Fix Issue 489: The href attribute on image elements was being created without a prefix.
Fix Issue 489: The href attribute on image elements was being created without a prefix.

setAttributeNS(nsuri, name, value) takes a qname, not a localname as its 2nd argument. (This is not to be confused with getAttributeNS(nsuri, name), which takes a localname as its 2nd argument.)
hackintos/svg-edit,bogdanmanate/svg-edit,portablejim/svg-edit,Gisellameloni/svg-edit,portablejim/svg-edit,4xx/svg-edit,rebootcode/svg-edit,Gisellameloni/svg-edit,kimoa/svg-edit,rebootcode/svg-edit,kimoa/svg-edit,likaiguo/svg-edit,DevHack/svg-edit,4xx/svg-edit,likaiguo/svg-edit,kimoa/svg-edit,DevHack/svg-edit,DevHack/svg-edit,muhadbk0/svg-edit,bogdanmanate/svg-edit,rebootcode/svg-edit,hackintos/svg-edit,4xx/svg-edit,muhadbk0/svg-edit,hackintos/svg-edit,Gisellameloni/svg-edit,muhadbk0/svg-edit,fflying/svg-edit,kimoa/svg-edit,bogdanmanate/svg-edit,hackintos/svg-edit,bogdanmanate/svg-edit,Gisellameloni/svg-edit,4xx/svg-edit,muhadbk0/svg-edit,rebootcode/svg-edit,fflying/svg-edit,fflying/svg-edit,likaiguo/svg-edit,portablejim/svg-edit,DevHack/svg-edit,likaiguo/svg-edit,fflying/svg-edit,portablejim/svg-edit