Merge pull request #33 in ZP/z-push from feature/ZP-671-log-memory-and-time-details-on-end to develop

* commit 'aac92fc7':
  ZP-671 Changes recommended by Manfred. Released under the Affero GNU General Public License (AGPL) version 3.
  ZP-671 Log memory and time info. Released under the Affero GNU General Public License (AGPL) version 3.