Jenkins ChangeSet for http://dev.digital-humanities.de/ci/view/All/job/DARIAH-Topics/457/

Update requirements	by severinsimmler
#setup.py
Extend README	by severinsimmler
#README.md
Fix typo	by severinsimmler
#README.md
Add docstrings and doctests	by severinsimmler
#dariah_topics/mallet.py