change launching of login item (at install time) to NSTask, so focus would stay with installer app
fixed issue where activity indicator would overlap with install/uninstall message on macOS Sierra
'Inactive' video and audio notifications are now automatically closed after two seconds
updated code for macOS Sierra (e.g. FaceTime does call CMIO:doWork)
added check to ensure we can get a process's path (which fixed a NULL pointer de-ref)
added 'avconferenced' as a white-listed apple daemon for macOS Sierra
added getOSVersion() function to facilitate macOS Sierra specific logic
added getProcessID() function to get a process name from it's pid
code cleanup/extra debug statements
added cmd+q hotkey for prefs app to close/quit
changed name of installer binary to match app
improved device detection (uses default if can't find apple camera/mic)
code cleanup/error handling
stop/start login item
set file perms correctly (i.e. setuid on login item)
update ui window
removed XPC embedded in main app (only is needed in helper.app)