Fix a few ES6 snippets that were still set to ES5
Fix a few ES6 snippets that were still set to ES5
orktes/atom-react,extrabacon/atom-react,MiincGu/atom-react,AdshadLib/atom-react,jeffshaver/atom-react,gre/atom-react,Nihu98/atom-react,nickhudkins/atom-react,blurrah/atom-react,rylanc/atom-react