Pizzitola's. Great name for a pizza joint. And that's exactly what what some potential customers mistakenly thought until the place changed its signs several years ago, adding references to barbecue, said manager Lexie Moore. "Everyone thanked us for bringing barbecue to the neighborhood," Moore said. "We had it all the time." We arrived at Pizzitola's Bar-B-Cue on Shepherd Drive in Houston about an hour or so before closing on a Friday night. The joint touts itself as "Houston's Home for Spareribs" and they weren't bad. Neither was the sausage. But the brisket was closer to roast beef, dry and without…