Replaced dropdown with button group
Postgres fix
Made NAME_FORMAT config optional
Fix: keep comments when editing votes
Removed vendor prefix from date input clock animation
Merge branch 'master' of ssh://git.mafiasi.de/mafiasi/dudel-git
Do not try to logout users who are not logged in
Add large test poll to the seed script
Add tooltip with voter and choice to the vote table cells

This is very usefull for large polls where the table header
is not visible anymore.
Add i18n support and first German translations
Deleting comments
Add a lot more translations
Allow users to change language

For authenticated users the preferred language is stored
in the database. Anonymous users just get a cookie.
Update a few translations
Merge branch 'i18n'
Translate comment deletion
Fixed error when yes-column was missing
Admin pages
Fixed admin overview user order
Hotfix: AnonymousUserMixin object has no attribute is_admin