Ignore meta keys
Ignore meta keys

On some keyboard layouts certain special characters are only reachable
via meta keys (e.g. Alt-Gr). However, pwdhash added weird characters to
the password by the simple press of a meta key. With this patch, pwdhash
ignores the press of a meta key.

Signed-off-by: Linus Lüssing <1dd561f221e05f08425aa0351cbf66864fb4804d@web.de>

T-X/pwdhash