updated routes, models, controllers, created workflow for going from QR code to a batch donation that creates an individual purchase for that donation and saves the charity of the button tapped or clicked
ads config/routes for new routes, db/seeds for seeding db with the charities, batch, batchcharity, and product needed for this to work
merging andrews cahnges to the readme

Merge branch 'master' of github.com:jmontross/karmagrove