- The Pyramid debug logger now uses the standard logging configuration
  (usually set up by Paste as part of startup).  This means that output from
  e.g. ``debug_notfound``, ``debug_authorization``, etc. will go to the
  normal logging channels.  The logger name of the debug logger will be the
  package name of the *caller* of the Configurator's constructor.

- If a string is passed as the ``debug_logger`` parameter to a Configurator,
  that string is considered to be the name of a global Python logger rather
  than a dotted name to an instance of a logger.