This year British Airways are celebrating 100 years in the sky and to mark this special occasion they have announced lots of exciting activity including some rather cool retro paint jobs on a few of their aircraft, new planes, and most excitingly for us a special edition IPA. The new transatlantic IPA has been developed for British Airways but the Scottish craft beermaker, BrewDog and in a world first it has actually been brewed at 40,000ft. The IPA started life…