Release 0.1.28

Changes since previous release:

• 883dcc7 v0.1.28
• 2efc8f0 Merge pull request #66 from cdump/dateformat
• 24fcbc4 fix new warnings/errors after mypy upgrade
• be23972 upgrade deps
• f7dcca3 change presenter default date format from %Y-%m-%d to %d.%m.%Y