Detect the "application/vnd.iso.19139+xml" and "application/gml+xml" MIME types
(instead of only application/xml"). More types to be added later.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK7@1515573 13f79535-47bb-0310-9956-ffa450edef68