@ is not correctly escaped

[MrSeccubus]

piTelex/txCode.py

Line 70 in 3ffa643

'@': '(AT)',

Provides a translation for the at sign from @ to (AT)

But,

piTelex/txCode.py

Line 48 in 3ffa643

_valid_ASCII_convert_chars = " ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-+=:/()?.,'\n\r@°"

Marks @ as a valid TTY character.

So the code in

piTelex/txCode.py

Line 110 in 3ffa643

if a not in BaudotMurrayCode._valid_ASCII_convert_chars:

will not convert it.

[MrSeccubus]

I don't think ° is a valid TTY chracter either.