libbfd documentation date is too old

[Nick Clifton]

Hi David,

> > It's just a Steve Chamberlain joke.  No product is stable until at
> > least release 3.0.
> 
> Should we remove it?  I have seen it confuse people that productize
> Binutils.

Oh surely not.  Humour in documentation is one of the few places left
where we can get smiles in this business.

I will however add a comment to explain the reference, OK ?

Cheers
        Nick