Remove credentials class
Add new way of doing credentials in dev
Update places where credentials are used
Add Procfile for deploying to Heroku
Declare ruby version in Gemfile
Fix bug in checking for credentials file
Make app listen on 3000 if it's set
Retry a request 10 times at most
Update README for deploying to Heroku
Remove localhost fulcrum API endpoint

Check form element exists before using it.
Add form_values back to record data
Rename variable for clarity
Add new form_version column