Merge branch '608-atom-api-wirft-serverfehler-wenn-werbung-vorhanden-ist' into 'development'

Resolve "Atom-API wirft Serverfehler, wenn Werbung vorhanden ist"

Closes #608

See merge request !1077

resources/views/layouts/atom10ad.blade.php

-@if(isset($ad)  && !$apiAuthorized)
+@if(isset($ad))
  <ad:advertisement>
    <ad:callOut atom:type="TEXT">{!! trans('ad.von') !!} {!! $ad->gefVon !!}</ad:callOut>
    <ad:title atom:type="TEXT">{{ $ad->titel }}</ad:title>