[BioPython] Deprecating the HTML parser in Bio.Blast.NCBIWWW

[Christof Winter]

Peter wrote, On 22.07.2008 17:38:
> For any Biopython and Blast users,
> 
> For some time now we've been discouraging the use of the HTML
> and plain text Blast parsers in favour of the XML format.
> 
> I think it would be a good idea to now officially deprecate the
> HTML parser in Bio.Blast.NCBIWWW with warning messages
> when it is used.

Full ack.

Christof