The specified font[] pattern need not have a medium weight. It could be
specified as a number too or have a different weight other than medium.

Signed-off-by: Christoph Lohmann <20h@r-36.net>

Thanks Alexander Sedov <alex0player@gmail.com> for finding this!

Thanks Mihail Zenkov <mihail.zenkov@gmail.com> for giving the hint!

Thanks Egmont Koblinger <egmont@gmail.com> for noticing this!

Thanks Jens Nyberg <jens.nyberg@gmail.com>!

Thanks Stephen Caraher <moskvax@gmail.com>!

This also applies some style fixes and handles some old blink codes.

Thanks Egmont Koblinger <egmont@gmail.com>!

Thanks Roberto E. Vargas Caballero! You were committing this patch against the
wrong version of the FAQ, so I had to rewrite it.

Thanks Mihail Zenkov <mihail.zenkov@gmail.com>!

Thanks "Roberto E. Vargas Caballero" <k0ga@shike2.com>!