The Lemonaid for Haiti kids and their mom. (Photo courtesy of YouTube)(See the video press release [http://www.youtube.com/watch?v=yFe-kVfuFqk] for the concert on YouTube.) You may remember the three Sheepshead Bay siblings, Chedera, Christopher, and Conner [/emmons-avenue-lemonade-stand-run-by-char/], who spent their summer afternoons selling lemonade on