This makes wpa_gui remember whether it was only in the tray when the
session was terminated and starts only in the tray if session manager
restarts it automatically.
Allow application to be started in the system tray only when started with
the `-t' command line argument.
Signed-off-by: Kel Modderman <kel@otaku42.de>
Do not connect lastWindowClosed() to quit(), instead explicitly close the
application if File->Exit or window manager close button is activated.
This allows the tray app to avoid being closed with last visible window,
and launch scan and event history windows individually.
Signed-off-by: Kel Modderman <kel@otaku42.de>
