chore(package.json): "require" node 5+ to build
chore(package.json): "require" node 5+ to build

prakhar1989/react-tags,mrdannael/react-tags,prakhar1989/react-tags,prakhar1989/react-tags,cklab/react-tags,mrdannael/react-tags,leonascimento/react-tags,leonascimento/react-tags,VladmirZhdanov1992/react-tags,cklab/react-tags,VladmirZhdanov1992/react-tags