Aiohttp

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- Fix graceful shutdown handling
- Fix `Expect` header handling for not found and not allowed routes (`340 <https://github.com/aio-libs/aiohttp/pull/340>`_)



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- Flow control subsystem refactoring
- HTTP server performance optimizations
- Allow to match any request method with `*`
- Explicitly call drain on transport (`316 <https://github.com/aio-libs/aiohttp/pull/316>`_)
- Make chardet module dependency mandatory (`318 <https://github.com/aio-libs/aiohttp/pull/318>`_)
- Support keep-alive for HTTP 1.0 (`325 <https://github.com/aio-libs/aiohttp/pull/325>`_)
- Do not chunk single file during upload (`327 <https://github.com/aio-libs/aiohttp/pull/327>`_)
- Add ClientSession object for cookie storage and default headers (`328 <https://github.com/aio-libs/aiohttp/pull/328>`_)
- Add `keep_alive_on` argument for HTTP server handler.



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- Pass Autobahn Testsuite tests
- Fixed websocket fragmentation
- Fixed websocket close procedure
- Fixed parser buffer limits
- Added `timeout` parameter to WebSocketResponse ctor
- Added `WebSocketResponse.close_code` attribute



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- Client WebSockets support
- New Multipart system (`273 <https://github.com/aio-libs/aiohttp/pull/273>`_)
- Support for "Except" header (`287 <https://github.com/aio-libs/aiohttp/pull/287>`_) (`#267 <https://github.com/aio-libs/aiohttp/pull/267>`_)
- Set default Content-Type for post requests (`184 <https://github.com/aio-libs/aiohttp/pull/184>`_)
- Fix issue with construction dynamic route with regexps and trailing slash (`266 <https://github.com/aio-libs/aiohttp/pull/266>`_)
- Add repr to web.Request
- Add repr to web.Response
- Add repr for NotFound and NotAllowed match infos
- Add repr for web.Application
- Add repr to UrlMappingMatchInfo (`217 <https://github.com/aio-libs/aiohttp/pull/217>`_)
- Gunicorn 19.2.x compatibility



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- Fix issue with error during constructing of url with regex parts (`264 <https://github.com/aio-libs/aiohttp/pull/264>`_)



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- Use path='/' by default for cookies (`261 <https://github.com/aio-libs/aiohttp/pull/261>`_)



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