Add debugging code

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-578@1421014 13f79535-47bb-0310-9956-ffa450edef68
Fix infinite loops on object fetches.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-578@1421042 13f79535-47bb-0310-9956-ffa450edef68
Fix NPE resulting from premature cleanup

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-578@1421365 13f79535-47bb-0310-9956-ffa450edef68
Clean up e.printStackTrace() debugging output.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/branches/CONNECTORS-578@1421419 13f79535-47bb-0310-9956-ffa450edef68