Installs a new rails app
Adds gems for testing, file upload, and styling
Adds initial DataFile model along with related specs, controller, and views
Adds better upload specs and implements strong params into DataFilesController
Adds DataFilesController#create specs and initial flow to save and ultimately normalize the data file
Adds most of the models and wraps up the DataFile functionality
Fixes typos
Finishes the exercise
Removes UI feature due to time constraints