[sv-bc] sv-bc Welcome message

I've just signed up for this sv-bc mailing list, and the Welcome message is
painfully out-of-date, referring to SystemVerilog 3.0 and making a confusing
reference to the sv-ec group. Maybe someone should update the message?

Cheers,

-- 
-- Andrew MacCormack                            andrewm@cadence.com
-- Senior Design Engineer                    Phone: +44 1506 595360
-- Cadence Design Foundry      http://www.cadence.com/designfoundry
-- Alba Campus, Livingston EH54 7HH, UK        Fax: +44 1506 595959