fixed sfBrowser does not create DOMDocument when response is text/xml (closes #3766 - patch from francois)
fixed sfBrowser does not create DOMDocument when response is text/xml (closes #3766 - patch from francois)

git-svn-id: 8f5d9a3975ba0af110251f601dfadfacaf171662@9668 ee427ae8-e902-0410-961c-c3ed070cd9f9

catchamonkey/symfony-1.0,catchamonkey/symfony-1.0,catchamonkey/symfony-1.0