Gee whiz, Archie! Riverdale High School, the stomping grounds of comic books' favorite teen and his friends, is opening its doors to an openly gay student - a first in the 69-year history of the character. "We're trying to reflect society and we're just trying to show Riverdale is a diverse place," says Dan Parent, the artist-writer behind the series. Kevin Keller makes his debut in September in "Veronica" No. 202, on sale in September, as a hunky new kid who catches the raven-haired vixen's eye. Though Veronica is used to getting her way, she's finally run up against a...