Want to set the browser field to either the dist/handlebars file or lib/handlebars to avoid issues with require.extension code being included on the client.

Should look at using browser as an object rather than a string:
https://github.com/defunctzombie/node-uuid/blob/master/package.json#L30

This might let us handle the runtime and the full library.