* Add example scripts to show listing items & posting to channels 74
* Add `members_exclude` parameter to the `Channels.list` method 105
* Add `RTM.connect` method 106
* Add `channel` parameter to the `Files.list` method 103
* Add `__str__` method to the `Response` class 107
* Add `thread_ts` parameter for `Chat.post_message` method 101
* Added undocumented `users.admin.invite` method 94
* Make sure empty lists are also JSON encoded 93
* Added `__version__` 108
* Support connection pooling via `requests.Session` 111