Jenkins ChangeSet for http://dev.digital-humanities.de/ci/view/All/job/TopicsExplorer/93/

fix: typo	by severinsimmler
#application/utils.py
fix: logging	by severinsimmler
#application/utils.py
feat: frozen parameter	by severinsimmler
#topicsexplorer.py
feat: add freezing instructions	by severinsimmler
#README.md