Control test logging via log4j.properties only

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1521137 13f79535-47bb-0310-9956-ffa450edef68
Don't print internal Jetty log messages

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1521139 13f79535-47bb-0310-9956-ffa450edef68