UIMA-4069 Redesign of JD toward the main goal of classpath separation for container (system) code.

UserErrorHandler interface comprising configuration and error handling plus default implementation & test cases. (revised)

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1637267 13f79535-47bb-0310-9956-ffa450edef68