Bug Fixes
=======
* Bump Cython from 0.28.2 to 0.28.3.
(by 1st1 in 5044d240)
* Increase default SSL handshake timeout to 60 seconds.
(by 1st1 in 70c332cf, fixes 161)
* Add `ssl_handshake_timeout` parameter to `loop.create_connection()`,
`loop.create_server()`, `loop.create_unix_connection()`,
`loop.create_unix_server()`, `loop.connect_accepted_socket()`.
(by 1st1 in 68dd7337, addresses 161)
* Consistently close transports if create_server/create_connection/etc
timeout or cancelled.
(by 1st1 in ac90d8bd and 77ee4f96)