John McEleney / mailutils

Implemented -t. Changed implementation of -Q.

Rewritten action() to correctly handle multibyte characters
and to provide for eventual using the BIDI algorithm.
(print_line,format_field,format_field_simple)
(format_field_align): New functions
(util_getcols): Measure /dev/tty if unable to open stdout.
(to work correctly with piped output).
(rfc2047_decode_wrapper): Cache the determined locale.
(get_personal): Do not limit the returned string length.
Do not attempt to decode the raw header text, since
parse822 will skip non-ascii characters, decode the already
obtained personal part instead.