thoughtbot/suspenders — pull request #131 by croaky (2013-01-02 07:30:07+00:00)
Title: Use RACK_ENV from .env in development

* Include `-e $RACK_ENV` in `Procfile` per Heroku docs.
* Remove unnecessary `sample.env` from generated Rails app repo.
* Make script/setup idempotent by only adding `RACK_ENV` environment
variable to `.env` if not in file.