<commit_before>  - The `listeners` method no longer returns the raw list of listeners;
    mutating listeners on the EE with this method no longer works.
  - Possible to remove once handlers, as internally listeners are now keyed
    by the unwrapped handler
  - Minor stylistic tweaks to make code more pythonic

2017/11/17 Version 4.0.1
  - Fix bug in setup.py; Now publishable

2017/11/17 Version 4.0.0
  - Coroutines now work with .once
  - Wrapped listener is removed prior to hook execution rather than after for
    synchronous .once handlers
<commit_msg>Tweaks to CHANGELOG messaging<commit_after>  - The `listeners` method no longer returns the raw list of listeners;
    mutating listeners on the EventEmitter by mutating the list returned by
    this method isn't possible anymore
  - `once` API now returns the unwrapped handler in both decorator and
    non-decorator cases
  - Possible to remove once handlers with unwrapped handlers
  - Internally, listeners are now stored on a OrderedDict rather than a list
  - Minor stylistic tweaks to make code more pythonic

2017/11/17 Version 4.0.1
  - Fix bug in setup.py; Now publishable

2017/11/17 Version 4.0.0
  - Coroutines now work with .once
  - Wrapped listener is removed prior to hook execution rather than after for
    synchronous .once handlers

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{'dir': 'git-commits-cleaned', 'id': '6904706', 'n_tokens_mistral': 393, 'n_tokens_neox': 357, 'n_words': 182}