Use env preset

[itsMapleLeaf]

Closes #196

[jsf-clabot]

All committers have signed the CLA.

[evenstensberg]

Hey @kingdaro , awesome work! Could you install the plugin and remove the babel-preset-es2015 from package.json ?

1. npm uninstall babel-preset-es2015
2. npm install --save babel-preset-env

[itsMapleLeaf]

Sure thing, also updated the relevant docs and configuration as well

[evenstensberg]

Could you do npm install now? The package-lock.json should be updated if you followed the steps 👍

[evenstensberg]

Thanks!