UIMA-4069 DUCC Job Driver (JD) system classpath

handle "error" work items

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1646756 13f79535-47bb-0310-9956-ffa450edef68
UIMA-4060 Modified to use embedded jetty

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1646763 13f79535-47bb-0310-9956-ffa450edef68
UIMA-4060 updated exception placeholder

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1646777 13f79535-47bb-0310-9956-ffa450edef68