- clarified which profiles that may have triggered this issue
- added a lot of hardening to
  ece-install::content-engine::set_up_engine_cron_jobs:

  * now runs all find/delete commands as the ${ece_user}
  * added dedicated methods with self-declaring names of tests if the
    ${ece_user} owns the thumbnail directory, if its not, the cron
    script will exit.
  * added logging for all decisions the cron script does
- added note on checking the known issues to the postinst script of
  escenic-content-engine-install.er
- the guide is starting to look pretty good as a man page
- added more hardening to the cron job generated from
  ece-install::constants::set_up_content_engine_cron_jobs
- re-added the EAE download bunlde to technet_download_list as it's
  now (for 5.5) available on Technet again.

- fai_analysis_install=1 now puts the qs.cfg out with the others in
  /etc/escenic/analysis