Improve memory release with leave_room#75
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gfroissard wants to merge 2 commits intolivekit:mainfrom
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This is to avoid use after free of que queue for example.
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Summary
This PR improve two things related of the usage of "leave_room" (function not called yet in the sample code).
Possible use after free
In some case, for example, the websocket can try to enqueue a message in a queue which has been freed but the pointer has not been set to NULL.
Possible memory leak
The event group is created by
peer_createit is now released inpeer_destroyin order to make it symmetric and avoid memory leak.