Log Message:
py-sanic: updated to 19.3.1

19.3.1
Changes:
* Add support for zero-length and RFC 5987 encoded filename for \ 
multipart/form-data requests.
* The type of expires attribute of sanic.cookies.Cookie is now enforced to be of \ 
type datetime.
* Add support for the stream parameter of sanic.Sanic.add_route() available to \ 
sanic.Blueprint.add_route().
* Accept negative values for route parameters with type int or number.
* Deprecated the use of sanic.request.Request.raw_args - it has a fundamental \ 
flaw in which is drops repeated query string parameters. Added \ 
sanic.request.Request.query_args as a replacement for the original use-case.
* Remove an unwanted None check in Request class repr implementation. This \ 
changes the default repr of a Request from <Request> to <Request: None \ 
/>
* Added 2 new parameters to sanic.app.Sanic.create_server:
return_asyncio_server - whether to return an asyncio.Server.
asyncio_server_kwargs - kwargs to pass to loop.create_server for the event loop \ 
that sanic is using.
This is a breaking change.
* Added a set of test cases that test and benchmark route resolution.
* The type of the "max-age" value in a sanic.cookies.Cookie is now \ 
enforced to be an integer. Non-integer values are replaced with 0.
* Added the endpoint attribute to an incoming request, containing the name of \ 
the handler function.
* Improved request streaming. request.stream is now a bounded-size buffer \ 
instead of an unbounded queue. Callers must now call await request.stream.read() \ 
instead of await request.stream.get() to read each portion of the body.
This is a breaking change.

Fixes:
* Sanic was prefetching time.time() and updating it once per second to avoid \ 
excessive time.time() calls. The implementation was observed to cause memory \ 
leaks in some cases. The benefit of the prefetch appeared to negligible, so this \ 
has been removed. Fixes
* Fix a bug in the auto-reloader when the process was launched as a module i.e. \ 
python -m init0.mod1 where the sanic server is started in init0/mod1.py with \ 
debug enabled and imports another module in init0.
* Allow sanic test client to bind to a random port by specifying port=None when \ 
constructing a SanicTestClient
* Added the ability to specify middleware on a blueprint group, so that all \ 
routes produced from the blueprints in the group have the middleware applied.
* Allow the the use the SANIC_ACCESS_LOG environment variable to enable/disable \ 
the access log when not explicitly passed to app.run(). This allows the access \ 
log to be disabled for example when running via gunicorn.

Developer infrastructure:
* Update project PyPI credentials
* fix linter issue causing travis build failures
* Fix python version in doc build
* Upgrade setuptools version and use native docutils in doc build
* Upgrade pytest, and fix caplog unit tests

Typos and Documentation:
* Fix typo at the exception documentation
* fix typo in Asyncio example
* Documentation typo
* Fix grammar in README.md
* Added "databases" to the extensions list
* Add sanic-zipkin to extensions list
* Removed link to deleted repo, Sanic-OAuth, from the extensions list
* 18.12 changelog
* Add example of amending request object
* Update README
* Update README
* Update README, including new logo
* fix minor type and pip install instruction mismatch
* Documentation Enhancements