Add EXPLAIN ANALYZE to postgresql

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/trunk@1471217 13f79535-47bb-0310-9956-ffa450edef68
Upgrade to httpcomponents 4.2.5 release.

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/trunk@1471218 13f79535-47bb-0310-9956-ffa450edef68