[BRLTTY] Bindings again

[Jean-Philippe MENGUAL]

Hi,

Well I'm experiencing the new patch which is perfect. But now a small 
difficulty appears. In fact, I can't anymore do alt-F4, or ctrl-i, or 
such combination on the braille keyboard. If I take the example of 
Eurobraille: normally I do ctrl (78+space) then the letter or F1 
(1+backspace)... Now if I do ctrl then i, it writes i.

It's neither an emergency nor absolutely problematic. But it's a small 
problem it might be useful to fix if it is possible.

s usually I stay available for test on 3.8 release. s and when you like.

Best regards, JP