The Georgian man was already deep into his chacha brandy by the time he sashayed through the disco-lit shadows of the dining room at Georgian Bakery & Cafe. With shot glass in hand, he sidled up to the table of an Armenian pal and gave a speech toasting the friendship and solidarity of the former Soviet republics. They clinked glasses, linked drinking arms, and downed their shots just as the band kicked in with a Georgian-language version of “Knockin’ on Heaven’s Door” and a steamy plate of huge khinkali dumplings landed on our table…