Babel 6

[novemberborn]

Babel 6 can't transform the index.js file without explicitly specifying the necessary plugins. In my project these are listed in a .babelrc file but Babel stops looking for configuration options when it encounters the package.json file.

Adding the configuration for Babel 6 seems brittle though, and won't work if the depending project is using Babel 5. Perhaps the es5 file should just be the default? That'd be the most compatible solution.

I could do a PR for this if you're interested.