receipt view updated with lines in order, still needs to deal with de-duping the list
de-duped receipt view, landscape view for phone/tablet (more than likely the view to continue with
latest updates for android studio
moved to a 3 column view on tablets, receipt, commands, product
commands for numeric pad and clear/commit
resolves gh-4, gh-3 v1.0 uploaded to google play store, basic layout on tablet, non-functional edit dialog included