upgrade ruby version
Add an option to make heroku work with Rails 3.x applications: https://devcenter.heroku.com/articles/rails-asset-pipeline
Remove therubyracer - no longer needed for heroku
Work around Vagrant issue
Not sure when this change happened, but it looks necessary
Commit statically built assets for production
Turns out therubyracer is needed after all
Just put that back for now ... see if we can fix Heroku another way