bill-auger/av-caster: A light-weight native gStreamer GUI for screencast, webcam, and audio streaming

bill-auger 4149b16a20 handle preset load event atomically		8 lat temu
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Constants	4149b16a20 handle preset load event atomically	8 lat temu
Controllers	4149b16a20 handle preset load event atomically	8 lat temu
Models	4149b16a20 handle preset load event atomically	8 lat temu
Trace	4149b16a20 handle preset load event atomically	8 lat temu
Views	4149b16a20 handle preset load event atomically	8 lat temu
Main.cpp	faa712a0c5 update docs and licenses	8 lat temu