Slackbot

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This release contains the following new features:

* [101, 111] Add support for http_proxy and no_proxy environment
variables

* [109] message.channel can be compared to channel name or channel ID

* [138, 144] Messages from other bots could raise exceptions

* [141] The bot can now respond to users that joined after the bot logged
in

* [149] utils.download_file() now accepts an optional token parameter

* [136] Let slackbot add replies to a thread

* message.channel.upload_content() for uploading data without storing it in
a file first

* Official support for Python 3.6

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This release contains the following new features:

* [82] - Support default_reply decorator

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This release contains the following new features:

* [60] - Added support for aliases.

* [67] Send tracebacks to a specified channel/group/user

* [68] Respond to botname in addition to botname

* [71] Support importing individual plugin modules

* [73] DEFAULT_REPLY can now be passed via environment variables.

* [74] Update send_webapi to send as_user by default

* [75] Support attachments in message.reply_webapi

* [81] Improve reconnection logic to avoid getting 429 Too Many Request