Changelog:
============
- Fixed a bug that resulted in WebSocket pings not being sent at the configured interval.
- Improved logging for invalid Host headers. This was previously logged as an
uncaught exception with a stack trace, now it is simply a 400 response
(logged as a warning in the access log).
- Restored the host argument to HTTPServerRequest. This argument is deprecated
and will be removed in the future, but its removal with no warning in 6.5.0 was a mistake.
- Removed a debugging print statement that was left in the code.
- Improved type hints for gen.multi.
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
