remove any thread-safe stuff I introduced since it's not needed
as unC0Rr pointed out it's not needed, we are single-threaded (thanks :D)
from what I understood this time, Qt is clever enough to sequentialize all events and child destructions instead of spawning threads
also some docs/comments
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>get-task-allow</key>
<false/>
</dict>
</plist>