• (ms) Added PatternLayout::Multiline code by Cory Bennett to
  render multiline messages.
  
• (ms) Added log level TRACE (lets through even more messages
  than DEBUG) (suggested by Craig).
  
• (ms) Added 'syswrite' flag to file appender to have it use
  'syswrite' instead of 'print', avoiding buffered or
  interleaving messages originating from different processes
  (thanks to Evan Miller).