Add version comment block to distributed files

The goal of this commit is to ensure that the files distributed via S3 have proper versioning associated with them.  

This is to help unify the publishing of Ember micro-libs under the ember-publisher project.   At some point I will likely attempt to modularize the calculateVersion file, as it is used by ember / ember-data  and now rsvp.  

If anyone is interested I'd be happy to review this PR with them.  Thanks. :)))))