Merge pull request #19 from christopheschwyzer/issue-19

EventList Redesign
Merge branch 'master' of github.com:denkmal/denkmal.org into issue-20
Merge pull request #20 from christopheschwyzer/issue-20

Fix SongPlayerButton.js
Merge branch 'master' of github.com:denkmal/denkmal.org into issue-21