Channels

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* Staticfiles support in runserver

* Runserver logs requests and WebSocket connections to console

* Runserver autoreloads correctly

* --noasgi option on runserver to use the old WSGI-based server

* --noworker option on runserver to make it not launch worker threads

* Streaming responses work correctly

* Authentication decorators work again with new ASGI spec

* channel_session_user_from_http decorator introduced

* HTTP Long Poll support (raise ResponseLater)

* Handle non-latin1 request body encoding

* ASGI conformance tests for built-in database backend

* Moved some imports around for more sensible layout

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* Connections now pooled per backend shard
* Random portion of channel names now 12 characters
* Implements new ASGI single-response-channel pattern spec

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* Nonblocking receive_many now uses Lua script rather than for loop.

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* Nonblocking receive_many now works, but is inefficient
* Python 3 fixes

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* Fixed packaging issues


Full release notes, with more details and upgrade information, are available at:
https://channels.readthedocs.io/en/latest/releases