Babel ES2015 Loose mode to be used with rollup

This combines babel-preset-loose with babel-preset-es2015-rollup.

The version number does not correspond with the Babel version number.

$ npm install babel-preset-es2015-loose-rollup --save-dev

.babelrc

{
  "presets": ["es2015-loose-rollup"]
}

$ babel script.js --presets es2015-loose-rollup

require('babel-core').transform('code', {
  presets: ['es2015-loose-rollup']
});