* origin/topic/awelzel/4440-websocket-pong-timeout:
btest/cluster/websocket: Update tests for new event signature
cluster/websocket: Propagate code and reason to websocket_client_lost()
cluster/websocket: Support configurable ping interval
IXWebSocket: Bump to improve O^2 rxbuf erase()
(cherry picked from commit 8f60d37ad0)
* origin/topic/awelzel/fix-flaky-terminate-while-queueing:
cluster/websocket: Stop and wait for reply thread during Terminate()
(cherry picked from commit 135acc7c6d)
* origin/topic/awelzel/4420-simeon-breaking-websockets:
Websocket: Close onloop during Terminate()
OnLoop: notify_all() instead of notify_one()
(cherry picked from commit 4afb0ffeeb)