Better figaro

This should fix carrierwave (see carrierwave.rb) by using a bucket on AWS to host the images. I also installed a gem called figaro because I don't want the secret key to be on github. If you want the secret keys you can either get it from Ada's AWS account (instructions in campfire) or from me. Either way, you will have to gem install figaro and bundle install to make this work.

There's also this article about config vars on Heroku https://devcenter.heroku.com/articles/config-vars for when we push it there. I don't have access to the remote though. I could make a new one, but it seems a) redundant and b) like it might not be succesful.