UIMA-3829 Cleared user exclusion list in ducc.properties. Modified rogue process detector to ignore processes owned by UIDs < 500 as these are system processes and thus not rogue.

git-svn-id: https://svn.apache.org/repos/asf/uima/sandbox/uima-ducc/trunk@1595271 13f79535-47bb-0310-9956-ffa450edef68