extracting jdbc in its own page

git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1541406 13f79535-47bb-0310-9956-ffa450edef68
removing commons logo which is no more accurate

git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1541407 13f79535-47bb-0310-9956-ffa450edef68