[Freemint-list] restarting XaAES

[Helmut Karlowski]

Currently most signals are caught by XaAES and non-fatal ones are ignored  
(including SIGTERM). I removed the shutdown for SIGTERM because it could  
happen that the user types ^C in some context and then XaAES quits.

It was an idea to send e.g. SIGUSR1 or something else to let it do a  
restart, but there is no action now.

In the alert typing 'o' should work (in all alerts the shortcuts are  
underlined).
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