Okay, a little over two years and whole lot more than beer — but this is a little goodbye note to Panama.   Of the four national beers in Panama (Panama, Balboa, Soberana & Atlas), the green-bottled namesake is by far the best.Though, I must admit, they all taste a bit like gutter-water and will leave you more bloated than drunk.   I’ve drank Panama underwater in bromine-soaked pools and I’ve drank it in the back seat of a Piper Cherokee Six while flying low over the Pearl Islands.   I’ve drank Panama at 7:00am in the stern of a rusted-out fishing panga with strange Panamanian fishermen while the burnt sun rose over endless waters. I’ve set a can down briefly while I reeled…