title: CakePHP change error.log or debug.log file name
body: <p>By changing <a href="http://api20.cakephp.org/view_source/file-log#line-58" rel="nofollow">/Cake/Log/Engine/Filelog.php</a>'s write function I can change "error.log" and "debug.log" file names.</p>
  
  <p>Is there any way to change these file names without hacking CakePHP 2 core files.</p>