Start Coupon Details.  Currently passes barcode number to the DetailsViewController.
Detail view currently pulls retailer name, offer, and expiration date correctly based on which item was selected.  Does not work if barcode from the row started with a "0".
Update on the database and worked on coupon details
Fixed rs memory error
Fixed done button bug
Fixed settings button layout
Merge branch 'master' into DetailsView
Finished DetailsView
Beginnings of Constraints for SignUp