Fix server start/stop in tests

git-svn-id: https://svn.apache.org/repos/asf/jena/branches/jena-fuseki-new-ui@1571041 13f79535-47bb-0310-9956-ffa450edef68
Remove debug code

git-svn-id: https://svn.apache.org/repos/asf/jena/branches/jena-fuseki-new-ui@1571042 13f79535-47bb-0310-9956-ffa450edef68