As if on cue, a person from the kitchen palms me a plate of zucchini kabobs: strips of crispy zucchini wrapped all over feta cheese with tzatziki. I inhale it and finish from the Greek sauce with some toasted pita. Gramercy's new Diner24, which opened in May possibly, is hoping to really make it as one of these "open-late" spots Inspite of a conti