title: How to customize log output format in Catel?
body: <p>We're using Catel 3.9 and <code>FileLogListener</code>. However the log format doesn't contain date nor thread id. Also the time format is in 12h and not 24h.</p>
  
  <p>I couldn't find any way to customize the log format like in log4net. Is it possible or do I need to implement my own <code>FileLogListener</code>?</p>