Ontario's New Democrats unveiled their new, bigger caucus next door to Queen's Park yesterday. Andrea Horwath arrives to the cheers of her new, larger NDP caucus.   Re-elected Trinity-Spadina MPP Rosario Marchese introduces his leader.   The NDP leader has a message for the premier.   Marchese, for some reason, flips through Horwath's notes as she's speaking.     Now that's a scrum.     Horwath embraces her new MPP for Davenport, Jonah Schein.     Nickel Belt MPP France Gelinas records the moment for her own records.     The new NDP leadership: party whip Cheri Di Novo, and house leader Gilles Bisson.      The NDP finally penetrated the suburban Toronto ridings. Jagmeet Singh is the new MPP for Bramalea-Gore-Malton, speaking here to Trinity-Spadina's Rosario Marchese, the caucus chair.     New MPP John Vanthof from Temiskaming-Cochrane. His uncle is PC MPP Ernie Hardeman.