ACSII > 127 not working + ALT (OptionKey) in MacOS also not working

[gierig1977]

Hey

On German Mac OS (and other keyboard) some Chars are behind the ALT (Option) key.
So @, |, \ are not working fir telnet as the ALT key not work under MacOS.

Ale beside that special Chars in ASCII >127 like üäö, not working and give some mixup characters.

[rickparrish]

Sorry, I'm not sure that I'd be able to test this properly, let alone implement it, so it would take another programmer to tackle and submit a pull request I think.