added pg and 12factor
[#75995374]
add a spash screen and a test
 [#75995374]
Added a ruby version, also deleted some Gemfile comments
 [#75995374]
Merge branch 'master' of github.com:psytau/RailsBookCheckout into put-on-heroku
Merge pull request #2 from psytau/put-on-heroku

Put on heroku