add rails_12factor for deployment
adding db yml to git ignore
added db yml file to gitignore file
added ruby version to the gemfile
changes to staging deployment and ruby version in gemfile
added db yml file back, removed save and open page from user edits existing list
added confirmable migration to users table
added authentication helper so that my integration specs can reference sign_in_as user instead of having to go through the process of signing in for every test