Separate Jetty dependent code

git-svn-id: https://svn.apache.org/repos/asf/jena/branches/jena-fuseki-new-ui@1570715 13f79535-47bb-0310-9956-ffa450edef68
Logging - for runtime and for testing

git-svn-id: https://svn.apache.org/repos/asf/jena/branches/jena-fuseki-new-ui@1570716 13f79535-47bb-0310-9956-ffa450edef68