Just print an error when a query timeout happens, not dump a full the stacktrace.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1469320 13f79535-47bb-0310-9956-ffa450edef68
Debug facility.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1469321 13f79535-47bb-0310-9956-ffa450edef68
Return true always.

git-svn-id: https://svn.apache.org/repos/asf/jena/trunk@1469322 13f79535-47bb-0310-9956-ffa450edef68