ste-art

Websocket can hang if used with some proxies. After calling `WebSocket.Open` no events (`OnWsClosed, OnWsOpened, OnWsError`) are raised and some internal thread starts to generate high CPU usage. More info:...

This should be several different PRs, but I got a little carried away, so here all the changes. ### Features * `/preset` command that applyes settings presets specified in config.json....