title: Solr for Typo3: not searching in dynamic fields
body: <p>I'm using the Typo3 Solr Extension 2.8.3 and added some dynamic fields into the typoscripts definition. </p>
  
  <p>So for example, there is a dynamic field defined for <code>plugin.tx_solr.index.queue.tx_news.author_stringS = author</code>
  among the other typical definitons.</p>
  
  <p>It seems that the dynamic fields are not put into the index automatically.</p>
  
  <p>Is there a way to tell solr how to index dynamic fields too? - But using the typoscripts config ONLY. I don't like to touch the schema definition.</p>