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- Add support for Python 2.6
- Add ``queuify_logger()`` for moving logger's handlers to a queue.
- Add ``get_all_loggers()`` which returns a ``dict`` of all loggers that have been accessed.
- Proxy access to ``QueueHandler`` and ``QueueListener`` from either ``logutils`` if on Python 2 or ``logging.handlers`` if on Python 3.
- Extend base ``QueueListener`` class to respect log level of handler. The current stdlib version doesn't do this.