Temporary workaround for TIKA-1445 for Tika 1.7 - always pass the image to the regular parser to get the metadata set. Will be replaced in 1.8 with composite parsers + user selected config with strategy

git-svn-id: https://svn.apache.org/repos/asf/tika/trunk@1646624 13f79535-47bb-0310-9956-ffa450edef68