0.6.1
Fix #22 ref: https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-es2015-modules-umd#via-babelrc-recommended
Fix #22 ref: https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-es2015-modules-umd#via-babelrc-recommended