Rails on heroku

Just found out that the new Rails 3.1.3 can be deployed to heroku using 'heroku create --stack cedar' instead of 'heroku create'.  By doing this, the only thing you have to change in the Gemfile is delete the line 'gem sqlite3' and add the following:

group :development, :test do
  gem 'sqlite3'
end

group :production do
  gem 'pg'
end

then commit and push to heroku.

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