Merge branch 'master' of https://git.fachschaften.org/tudo-cs-infoscreen

less/less/Cache.php

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panels/GameOfLife/script.js

panels/GameOfLife/style.css

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panels/GameOfLife/template.html

panels/clock/background.png

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panels/clock/template.html

panels/departure/config/default.json

panels/departure/config/oh14.json

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panels/departure/style.less.metall